Controller: Use Protocol Buffers for API access. #11974

Job	Run time
changes	3s
Build	4m 6s
Verify Doc generation	19s
test-go	4m 17s
lua-lint	4s
Chart / Test	0s
Kubernetes (v1.29.12) / Kubernetes	44m 45s
Kubernetes (v1.28.15) / Kubernetes	45m 50s
Kubernetes chroot (v1.28.15) / Kubernetes CHROOT	45m 16s
Kubernetes chroot (v1.29.12) / Kubernetes CHROOT	45m 15s
Kubernetes chroot (v1.30.8) / Kubernetes CHROOT	45m 26s
Kubernetes chroot (v1.31.4) / Kubernetes CHROOT	46m 9s
Kubernetes chroot (v1.32.0) / Kubernetes CHROOT	46m 26s
Kubernetes (v1.30.8) / Kubernetes	44m 31s
Kubernetes (v1.31.4) / Kubernetes	45m 36s
Kubernetes (v1.32.0) / Kubernetes	45m 1s
	7h 43m 4s

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