infra(CI): skip required CI steps in merge_queues

[ST-DDT]

Another attempt at enabling the merge queue.

Previous attempt: #3245

• infra(ci): prepare CI for GitHub merge queues #3245

---

Both the fail-by-blocking-label and Semantic Pull Request pipelines require the pull_request context.

• https://github.com/faker-js/faker/actions/runs/11845914641/job/33012371158
• https://github.com/faker-js/faker/actions/runs/11845914639/job/33012371530
• infra(commit-and-tag-version): auto-bump version in usage-guide #3250 (comment)

There are two solutions to the problem:

• Make these steps optional, which might lead to accidental merges of bad values
• Let the CI skip the failing tasks in merge queues, but keep them otherwise required

I decided to try the later one first.

These solutions were suggested here:

• Support merge_group event amannn/action-semantic-pull-request#236 (comment)
• ci: Adds merge group event to PR title checker Azure-Samples/chat-with-your-data-solution-accelerator#860

I'm once again unable to test these changes myself.

[netlify]

✅ Deploy Preview for fakerjs ready!

Name	Link
🔨 Latest commit	3709226
🔍 Latest deploy log	https://app.netlify.com/sites/fakerjs/deploys/673c7f884ef41e0008984f2c
😎 Deploy Preview	https://deploy-preview-3265.fakerjs.dev
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.95%. Comparing base (b0a5ad3) to head (3709226).
Report is 1 commits behind head on next.

Additional details and impacted files

@@            Coverage Diff             @@
##             next    #3265      +/-   ##
==========================================
- Coverage   99.96%   99.95%   -0.01%     
==========================================
  Files        2806     2806              
  Lines      217156   217156              
  Branches      976      970       -6     
==========================================
- Hits       217075   217061      -14     
- Misses         81       95      +14     

see 1 file with indirect coverage changes

---- 🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests
• JS Bundle Analysis - Avoid shipping oversized bundles