Build Image: Bump atc0005/go-ci from go-ci-unstable-build-v0.21.5 to go-ci-unstable-build-v0.21.6 in /dependabot/docker/builds #732

Job	Run time
Go Module Validation / Assert PR branch is ahead	3s
Vulnerability / Assert PR branch is ahead	4s
Lint / Assert PR branch is ahead	3s
Dependency Updates / Assert PR branch is ahead	4s
Dependency Updates / Look for available minor or patch releases	26s
Go Module Validation / Look for missing vendored dependencies	15s
Go Module Validation / Look for missing go.mod changes	15s
Lint / Lint Dockerfiles	7s
Vulnerability / govulncheck	18s
Lint / Lint Markdown files	11s
	1m 46s

Provide feedback