chore(ci): update kernel-testing related matrix comment if already ex… #6454

Job	Run time
build-libs-emscripten 🧐	4m 33s
build-libs-linux-amd64-static 🎃	23m 13s
build-libs-linux-amd64 😁 (system_deps)	6m 24s
build-libs-others-amd64 😨 (windows-latest, MultiThreaded)	5m 3s
build-shared-libs-linux-amd64 🧐	5m 5s
build-shared-libs-macos-amd64 😨	1m 12s
build-libs-others-amd64 😨 (windows-latest, MultiThreadedDLL)	4m 45s
build-libs-linux-amd64 😁 (bundled_deps)	17m 47s
build-libs-others-amd64 😨 (macos-latest)	2m 27s
build-libs-linux-amd64 😁 (system_deps_minimal)	1h 16m 15s
run-e2e-tests-amd64 (system_deps)	9m 11s
test-libs-static (bundled_deps)	15m 5s
run-e2e-tests-amd64 (bundled_deps)	32m 53s
build-libs-linux-amd64 😁 (sanitizers)	20m 26s
run-e2e-tests-amd64 (asan)	21m 44s
build-libs-linux-arm64 😁 (system_deps)	17m 3s
build-libs-linux-arm64 😁 (bundled_deps)	49m 25s
build-libs-linux-arm64 😁 (system_deps_minimal)	12m 19s
build-libs-linux-arm64 😁 (sanitizers)	45m 35s
	6h 10m 25s

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