ci(e2e): avoid commenting on PRs in CI, fixing PRs from forks

[aloisklink]

:bookmark_tabs: Summary

GitHub Actions can't comment on PRs, if the PR is made from a forked repo, as the github token won't have write permissions. This causes the E2E CI to fail in most PRs, e.g. see https://github.com/mermaid-js/mermaid/pull/5338#issuecomment-1980930325

However, we can instead use GitHub Actions' Adding a Job Summary feature, which prints some custom output for each job. This also means that we can calculate the bundle size for push events, not just PRs. For example, see https://github.com/aloisklink/mermaid/actions/runs/8177226929:

The only issue is that

Fix: e0448a7b7be4fcad775f9dd0292f49845c84836c

:straight_ruler: Design Decisions

:clipboard: Tasks

Make sure you

• [x] :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.
• [x] :bookmark: targeted develop branch

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[codecov[bot]]

Codecov Report

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

Project coverage is 44.67%. Comparing base (821076b) to head (46136b5).

Additional details and impacted files

[](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5365?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 #5365 +/- ## ======================================== Coverage 44.67% 44.67% ======================================== Files 25 25 Lines 5339 5339 Branches 27 27 ======================================== Hits 2385 2385 Misses 2953 2953 Partials 1 1 ``` | [Flag](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5365/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/5365/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js) | `44.67% <ø> (ø)` | | 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.