cleanup(libsinsp): update g_invalidchar for windows #6372

Job	Run time
build-libs-emscripten 🧐	4m 53s
build-libs-linux-amd64 😁 (system_deps)	6m 30s
build-libs-linux-amd64-static 🎃	22m 54s
build-libs-linux-amd64 😁 (bundled_deps)	17m 50s
build-libs-others-amd64 😨 (windows-latest, MultiThreaded)	5m 7s
build-libs-linux-amd64 😁 (system_deps_minimal)	4m 51s
build-shared-libs-linux-amd64 🧐	5m 29s
build-libs-others-amd64 😨 (windows-latest, MultiThreadedDLL)	4m 19s
build-libs-linux-amd64 😁 (sanitizers)	14m 42s
build-libs-others-amd64 😨 (macos-latest)	2m 25s
build-shared-libs-macos-amd64 😨	1m 7s
build-libs-linux-arm64 😁 (system_deps)	6m 15s
build-libs-linux-arm64 😁 (bundled_deps)	19m 8s
run-e2e-tests-amd64 (system_deps)	9m 14s
build-libs-linux-arm64 😁 (system_deps_minimal)	4m 55s
test-libs-static (bundled_deps)	14m 58s
run-e2e-tests-amd64 (bundled_deps)	20m 14s
build-libs-linux-arm64 😁 (sanitizers)	17m 30s
run-e2e-tests-amd64 (asan)	21m 41s
	3h 24m 2s

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