Comment out failing test (#2396)

https://chromium.googlesource.com/chromium/src/+/main/tools/metrics/histograms/metadata/blink/enums.xml
is returning 403s right now, so the test is failing and causing builds to fail (test does a network call).

It's worth having a discussion about how to better handle what this test is meant to cover, but
I'm just skipping the test now to unblock builds.

Author: neilv-g

workflows/steps/services/chromium_histogram_enums/workflow/chromium_codesearch_enum_fetcher_test.go

@@ -26,6 +26,7 @@ import (
 
 // This is more of an integration test to ensure the data is actually base64 encoded.
 func TestChromiumCodesearchEnumFetcher_Fetch_Base64Encoded(t *testing.T) {
+	t.Skip("Temporarily skipping due to responses being 403s")
 	ctx := context.Background()
 	httpClient := http.DefaultClient
 	fetcher, err := NewChromiumCodesearchEnumFetcher(httpClient)