Workflow update (#27)

[gohabereg]

• Changed files action testing

• Add action version

• Add test changed file

• Add another changed file

• Test PR comment

• Test PR comment

• Fix formatting

• try quotes in separator

• Use format for stirng concat

• escape quotes correctly

• Run mutation testing only on changed files

• Do not run tests if there is no changed files

• test merge group workflow

[github-actions[bot]]

⏭️ No files to mutate

[github-actions[bot]]

Coverage report

St.:grey_question:	Category	Percentage	Covered / Total
🟢	Statements	100%	346/346
🟢	Branches	98.91%	91/92
🟢	Functions	100%	100/100
🟢	Lines	100%	327/327

Test suite run success

215 tests passing in 11 suites.

Report generated by 🧪jest coverage report action from d63761d923bba654af4743c1166e3b37a2774790