build(deps): bump github.com/prometheus/client_golang from 1.20.4 to 1.20.5 #11033

Job	Run time
Go Lint	1m 33s
Generate Code	1m 6s
Rego PR checks	1m 32s
YAML Lint	21s
WASM	11s
Go Build (linux amd64)	2m 30s
Go Build (linux arm64)	2m 13s
Go Build (linux arm64GO_TAGS="-tags=opa_no_oci")	2m 13s
Check Generated	27s
Go Build (windows amd64)	2m 30s
Go Test (linux)	3m 57s
Go compat build/test (ubuntu-22.04, 1.21)	2m 39s
Go Build (darwin amd64)	1m 23s
Go Test (darwin)	4m 26s
Go compat build/test (macos-14, 1.21)	4m 6s
Go Build (darwin arm64)	1m 2s
Go Race Detector	6m 28s
docker image smoke test	32s
smoke-test-binaries (linux, ubuntu-22.04, opa_linux_amd64, amd64)	16s
smoke-test-binaries (linux, ubuntu-22.04, opa_linux_amd64_static, amd64, disabled)	9s
smoke-test-binaries (darwin, macos-13, opa_darwin_amd64, amd64)	21s
smoke-test-binaries (darwin, macos-14, opa_darwin_arm64_static, arm64, disabled)	14s
smoke-test-binaries (windows, windows-latest, opa_windows_amd64.exe, amd64)	30s
	40m 39s

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