Repository navigation

Create `changetool` script for validating change-notes #2920

Job	Run time
Test different uses of `upload-sarif` (ubuntu-latest, default, code-quality)	2m 55s
Test different uses of `upload-sarif` (ubuntu-latest, default, code-scanning)	3m 5s
Test different uses of `upload-sarif` (ubuntu-latest, default, code-scanning,code-quality)	3m 8s
	9m 8s