fix: replace use of deprecated methods

[G-Rath]

Checks

• [x] I have read the contributing guidelines.

Changes

• introduced compat utilities that enable support for ESLint v9
• replaced usages of context functions that were removed in v9 in favor of compat utils

Context

Resolves #924 Resolves #899

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 96.31%. Comparing base (93a6ab9) to head (88ecc28). Report is 21 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #925 +/- ## ========================================== + Coverage 96.23% 96.31% +0.07% ========================================== Files 44 45 +1 Lines 2419 2470 +51 Branches 1000 1023 +23 ========================================== + Hits 2328 2379 +51 Misses 91 91 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[G-Rath]

926 proves that this works with ESLint v7, v8, and v9 so I think this should be safe to merge as-is and then we'll be one step closer to supporting ESLint v9 officially

(the CI failure is just a flakey timeout - it should pass if rerun)

[G-Rath]

@Belco90 @MichaelDeBoey would it be possible to get this and my follow-up PRs progressed, given that they can be released in a minor version?

[Belco90]

Thanks for your contribution, and sorry for the inactivity. I'll try to get this merged during the week.

[G-Rath]

@Belco90 no worries, let me know if there's anything I can do to help - just in case you've not seen it, I've got a few pull requests open which include ones that ultimately lead to allowing ESLint v9 which are chained off of each other.

In order they are:

• 925 (this one)

• 927 (optional)

• 926

• 928

I should be able to have them rebased within minutes of you landing the prior ones unless I'm sleep, but I can also do a single big PR if you're prefer.

Let me know what works best for you, and also if you have questions or want something done differently

[Belco90]

@G-Rath Amazing, thank you so much! I'm going to merge some other chore PRs first (like your editorconfig PR), then we can rebase this one and start reviewing in the order you mentioned.

[G-Rath]

@Belco90 this is good to go now!

[Belco90]

@G-Rath Ah sorry, this must be reformatted after I merged the prettier v3 upgrade.

[G-Rath]

@Belco90 done 🙂

[github-actions[bot]]

:tada: This PR is included in version 6.3.3 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: