chore: bump golang from `3f3b9da` to `ef30001` #9405

Job	Run time
Build and Test (1.29.10)	7m 44s
Build and Test (1.30.6)	7m 43s
Build and Test (1.31.2)	7m 25s
[Generator Resource Expansion] Build and Test	8m 7s
[Helm] Build and Test (3.14.1, gatekeeper-system)	6m 22s
[Helm] Build and Test (3.14.1, custom-namespace)	6m 16s
	43m 37s

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