feat(tooling): add rc bump for release candidates (0.39.0-rc.2 -> 0.3… #13

Job	Run time
Conventional Commits	20s
Validate PR title	-7s
UI lint	59s
Proto (generate + git diff)	1m 27s
UI test	1m 26s
Go lint	0s
Go unit-tests	0s
Go fmt	-1s
Build (gitops, gitops-server)	-1s
Goreleaser (gitops CLI)	-1s
Build and push gitops-server image	-1s
Build and push Helm chart	-1s
Conventional Commits	18s
Validate PR title	-8s
UI lint	51s
UI test	1m 23s
Proto (generate + git diff)	1m 26s
Go fmt	0s
Build (gitops, gitops-server)	0s
Go lint	0s
Go unit-tests	0s
Goreleaser (gitops CLI)	0s
Build and push gitops-server image	0s
Build and push Helm chart	0s
	7m 50s

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