NGINX: Migrate auth cache key to NJS. #11759

Job	Run time
changes	9s
test-go	4m 6s
lua-lint	6s
Verify Doc generation	15s
Build	14m 9s
Chart / Lint	37s
Chart / Test (v1.28.15)	7m 20s
Chart / Test (v1.29.12)	7m 16s
Chart / Test (v1.30.8)	7m 15s
Chart / Test (v1.31.4)	7m 21s
Chart / Test (v1.32.0)	7m 5s
Kubernetes (v1.28.15) / Kubernetes	4m 31s
Kubernetes (v1.29.12) / Kubernetes	4m 33s
Kubernetes (v1.30.8) / Kubernetes	4m 35s
Kubernetes (v1.31.4) / Kubernetes	4m 22s
Kubernetes (v1.32.0) / Kubernetes	4m 31s
Kubernetes chroot (v1.28.15) / Kubernetes CHROOT	4m 35s
Kubernetes chroot (v1.29.12) / Kubernetes CHROOT	4m 42s
Kubernetes chroot (v1.30.8) / Kubernetes CHROOT	4m 41s
Kubernetes chroot (v1.31.4) / Kubernetes CHROOT	4m 49s
Kubernetes chroot (v1.32.0) / Kubernetes CHROOT	4m 39s
	1h 41m 37s

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