Update eslint to v9

[sidharthv96]

:bookmark_tabs: Summary

Move to flat config to support v9

:straight_ruler: Design Decisions

Describe the way your implementation works or what design decisions you made if applicable.

:clipboard: Tasks

Make sure you

• [ ] :book: have read the contribution guidelines
• [ ] :computer: have added necessary unit/e2e tests.
• [ ] :notebook: have added documentation. Make sure MERMAID_RELEASE_VERSION is used for all new features.
• [ ] :bookmark: targeted develop branch

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default (Inspect)	✅ No changes detected	-	Jun 30, 2024, 10:20 AM

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 2.77778% with 315 lines in your changes missing coverage. Please review.

Project coverage is 5.86%. Comparing base (14a2317) to head (f3a65f3).

Additional details and impacted files

[](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js) ```diff @@ Coverage Diff @@ ## develop #5603 +/- ## ========================================== + Coverage 5.74% 5.86% +0.12% ========================================== Files 280 273 -7 Lines 41937 41074 -863 Branches 492 512 +20 ========================================== Hits 2408 2408 + Misses 39529 38666 -863 ``` | [Flag](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js) | Coverage Δ | | |---|---|---| | [unit](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js) | `5.86% <2.77%> (+0.12%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js#carryforward-flags-in-the-pull-request-comment) to find out more. | [Files](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js) | Coverage Δ | | |---|---|---| | [...ages/mermaid-flowchart-elk/src/flowRenderer-elk.js](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603?src=pr&el=tree&filepath=packages%2Fmermaid-flowchart-elk%2Fsrc%2FflowRenderer-elk.js&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js#diff-cGFja2FnZXMvbWVybWFpZC1mbG93Y2hhcnQtZWxrL3NyYy9mbG93UmVuZGVyZXItZWxrLmpz) | `0.00% <ø> (ø)` | | | [...ages/mermaid/src/dagre-wrapper/blockArrowHelper.ts](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603?src=pr&el=tree&filepath=packages%2Fmermaid%2Fsrc%2Fdagre-wrapper%2FblockArrowHelper.ts&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js#diff-cGFja2FnZXMvbWVybWFpZC9zcmMvZGFncmUtd3JhcHBlci9ibG9ja0Fycm93SGVscGVyLnRz) | `0.00% <ø> (ø)` | | | [packages/mermaid/src/defaultConfig.ts](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603?src=pr&el=tree&filepath=packages%2Fmermaid%2Fsrc%2FdefaultConfig.ts&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js#diff-cGFja2FnZXMvbWVybWFpZC9zcmMvZGVmYXVsdENvbmZpZy50cw==) | `46.37% <100.00%> (+0.72%)` | :arrow_up: | | [packages/mermaid/src/diagram-api/diagramAPI.ts](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603?src=pr&el=tree&filepath=packages%2Fmermaid%2Fsrc%2Fdiagram-api%2FdiagramAPI.ts&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js#diff-cGFja2FnZXMvbWVybWFpZC9zcmMvZGlhZ3JhbS1hcGkvZGlhZ3JhbUFQSS50cw==) | `57.83% <100.00%> (-1.00%)` | :arrow_down: | | [packages/mermaid/src/diagrams/packet/renderer.ts](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603?src=pr&el=tree&filepath=packages%2Fmermaid%2Fsrc%2Fdiagrams%2Fpacket%2Frenderer.ts&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js#diff-cGFja2FnZXMvbWVybWFpZC9zcmMvZGlhZ3JhbXMvcGFja2V0L3JlbmRlcmVyLnRz) | `0.00% <ø> (ø)` | | | [packages/mermaid/src/tests/MockedD3.ts](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603?src=pr&el=tree&filepath=packages%2Fmermaid%2Fsrc%2Ftests%2FMockedD3.ts&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js#diff-cGFja2FnZXMvbWVybWFpZC9zcmMvdGVzdHMvTW9ja2VkRDMudHM=) | `80.27% <100.00%> (ø)` | | | [packages/mermaid/src/themes/theme-base.js](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603?src=pr&el=tree&filepath=packages%2Fmermaid%2Fsrc%2Fthemes%2Ftheme-base.js&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js#diff-cGFja2FnZXMvbWVybWFpZC9zcmMvdGhlbWVzL3RoZW1lLWJhc2UuanM=) | `3.81% <100.00%> (ø)` | | | [...kages/parser/src/language/common/valueConverter.ts](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603?src=pr&el=tree&filepath=packages%2Fparser%2Fsrc%2Flanguage%2Fcommon%2FvalueConverter.ts&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js#diff-cGFja2FnZXMvcGFyc2VyL3NyYy9sYW5ndWFnZS9jb21tb24vdmFsdWVDb252ZXJ0ZXIudHM=) | `0.00% <ø> (ø)` | | | [.esbuild/jisonPlugin.ts](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603?src=pr&el=tree&filepath=.esbuild%2FjisonPlugin.ts&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js#diff-LmVzYnVpbGQvamlzb25QbHVnaW4udHM=) | `0.00% <0.00%> (ø)` | | | [.esbuild/util.ts](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603?src=pr&el=tree&filepath=.esbuild%2Futil.ts&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js#diff-LmVzYnVpbGQvdXRpbC50cw==) | `0.00% <0.00%> (ø)` | | | ... and [69 more](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js) | | ... and [1 file with indirect coverage changes](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5603/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js)