CI: Update support matrix. #81

Job	Run time
changes	3s
Verify Doc generation	8s
Build	4m 4s
lua-lint	5s
test-go	4m 4s
Chart / Test	0s
Kubernetes (v1.28.15) / Kubernetes	45m 18s
Kubernetes (v1.29.12) / Kubernetes	45m 29s
Kubernetes (v1.30.8) / Kubernetes	45m 24s
Kubernetes (v1.31.4) / Kubernetes	47m 46s
Kubernetes (v1.32.0) / Kubernetes	51m 52s
Kubernetes chroot (v1.28.15) / Kubernetes CHROOT	52m 2s
Kubernetes chroot (v1.29.12) / Kubernetes CHROOT	44m 34s
Kubernetes chroot (v1.30.8) / Kubernetes CHROOT	44m 51s
Kubernetes chroot (v1.32.0) / Kubernetes CHROOT	53m 4s
Kubernetes chroot (v1.31.4) / Kubernetes CHROOT	44m 41s
	8h 3m 25s

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