Add weekly forward compatibility testing #2100

Job	Run time
code-scanning / Analyze Go code with CodeQL	4m 30s
variables / variables	4s
config-checks / helm-lint	7s
config-checks / validate-csv	30s
golang-checks / go-build	1m 43s
config-checks / validate-helm-values	35s
golang-checks / unit tests	33s
golang-checks / go-check	2m 16s
golang-checks / coverage	1m 2s
image-builds / variables	8s
image-builds / build-gpu-operator-arm64	2m 14s
image-builds / build-gpu-operator-amd64	2m 18s
image-builds / build-multi-arch-images	8s
e2e-tests / variables	7s
e2e-tests / e2e-tests-containerd	37m 19s
e2e-tests / e2e-tests-nvidiadriver	37m 19s
release	0s
	1h 30m 53s

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