Bump minimum CodeQL Bundle version to 2.17.6 #1787

Job	Run time
Upload debug artifacts after failure in analyze (default)	3m 8s
Upload debug artifacts after failure in analyze (linked)	3m 9s
Upload debug artifacts after failure in analyze (stable-v2.20.3)	2m 0s
Upload debug artifacts after failure in analyze (nightly-latest)	3m 9s
Download and check debug artifacts after failure in analyze	19s
	11m 45s

Provide feedback