[chore][CI/CD] Fix cloudflare receiver integration test (#32547)

Fixed the expected file extension for golden metrics comparison in
cloudflare receiver integration test to be .yaml, not .json.

Due to the undocumented behavior of the Integration test Make tasks only
running tests containing the string 'Integration', this was broken when
golden metrics were changed in test from JSON to YAML in
#20438.


While the 'Integration' restriction is being addressed in
#32529,
in case that gets caught up in review or this limitation is accidentally
reintroduced I added 'Integration' to the name of the test, as well.

**Link to tracking Issue:**
#32532

**Testing:** Ran the test locally to confirm that the test runs
successfully.

receiver/cloudflarereceiver/logs_integration_test.go

@@ -39,7 +39,7 @@ var testPayloads = []string{
  "multiple_log_payload",
 }
 
-func TestReceiverTLS(t *testing.T) {
+func TestReceiverTLSIntegration(t *testing.T) {
  for _, payloadName := range testPayloads {
  t.Run(payloadName, func(t *testing.T) {
  testAddr := testutil.GetAvailableLocalAddress(t)
@@ -108,7 +108,7 @@ func TestReceiverTLS(t *testing.T) {
 
  logs := sink.AllLogs()[0]
 
- expectedLogs, err := golden.ReadLogs(filepath.Join("testdata", "processed", fmt.Sprintf("%s.json", payloadName)))
+ expectedLogs, err := golden.ReadLogs(filepath.Join("testdata", "processed", fmt.Sprintf("%s.yaml", payloadName)))
  require.NoError(t, err)
 
  require.NoError(t, plogtest.CompareLogs(expectedLogs, logs, plogtest.IgnoreObservedTimestamp()))