github/ci: Bump remaining `ubuntu-20.04` jobs #23227

Job	Run time
request / incoming	57s
request / checks / Start checks	5s
request / cache / Docker/x64 / [${{ inputs.arch }}] Prime Docker cache	0s
request / cache / Docker/arm64 / [${{ inputs.arch }}] Prime Docker cache	0s
request / cache / Bazel (arm64/cache) / [${{ inputs.arch }}] Prime Bazel cache	0s
request / cache / Bazel (x64/cache) / [${{ inputs.arch }}] Prime Bazel cache	0s
	1m 2s

Provide feedback