`envoy.code.check`: Add bazel checks #4032

Job	Run time
gh-actions (20.x, appauth)	26s
gh-actions (20.x, dispatch)	22s
gh-actions (20.x, github/checks)	23s
gh-actions (20.x, github/mutex)	28s
gh-actions (20.x, github/script/run)	19s
gh-actions (20.x, hashfiles)	18s
gh-actions (20.x, jq)	18s
gh-actions (20.x, retest)	27s
gh-actions (20.x, torun)	18s
	3m 19s

Provide feedback