chore: test check-pr-title

[tatomyr]

What/Why/How?

This PR adds a GitHub Action to check PR titles.
They should follow this pattern: <type>[(scope)]: <subject>.

The goal is to ensure all commit messages follow the same style (see the contribution guide).

Reference

Testing

Screenshots (optional)

Check yourself

• Code changed? - Tested with redoc/reference-docs/workflows (internal)
• All new/updated code is covered with tests
• New package installed? - Tested in different environments (browser/node)

Security

• Security impact of change has been considered
• Code follows company security practices and guidelines

[changeset-bot]

⚠️ No Changeset found

Latest commit: 12c01e3

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[github-actions]

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
redocly lint packages/core/src/benchmark/benches/rebilly.yaml	964.2 ± 13.7	946.8	988.1	1.00
redocly-next lint packages/core/src/benchmark/benches/rebilly.yaml	967.3 ± 32.0	936.5	1051.4	1.00 ± 0.04

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟡	Statements	78.6%	5043/6416
🟡	Branches	67.21%	2052/3053
🟡	Functions	73.11%	832/1138
🟡	Lines	78.89%	4757/6030

Test suite run success

832 tests passing in 120 suites.

Report generated by 🧪jest coverage report action from 12c01e3