docs: Update contrib docs #10709

Job	Run time
YAML Lint	19s
Rego PR checks	1m 31s
Go Lint	1m 31s
Generate Code	1m 2s
Go Build (linux amd64)	2m 21s
Go Test (linux)	4m 15s
Check Generated	27s
Go Build (linux arm64)	2m 7s
Go compat build/test (ubuntu-22.04, 1.21)	4m 2s
Go Test (darwin)	4m 1s
Go Build (linux arm64GO_TAGS="-tags=opa_no_oci")	2m 0s
Go compat build/test (macos-14, 1.21)	4m 0s
Go Build (windows amd64)	2m 25s
Go Race Detector	6m 36s
Go Build (darwin amd64)	1m 49s
WASM	12s
Go Build (darwin arm64)	41s
docker image smoke test	33s
smoke-test-binaries (linux, ubuntu-22.04, opa_linux_amd64, amd64)	12s
smoke-test-binaries (linux, ubuntu-22.04, opa_linux_amd64_static, amd64, disabled)	11s
smoke-test-binaries (darwin, macos-13, opa_darwin_amd64, amd64)	38s
smoke-test-binaries (darwin, macos-14, opa_darwin_arm64_static, arm64, disabled)	14s
smoke-test-binaries (windows, windows-latest, opa_windows_amd64.exe, amd64)	32s
	41m 39s

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