envoy:xds_fuzz_test: Crash in Envoy::TestUtility::findCounter

Detailed Report: https://oss-fuzz.com/testcase?key=5657946447675392 Project: envoy Fuzzing Engine: libFuzzer Fuzz Target: xdsfuzztest Job Type: libfuzzerasanenvoy Platform Id: linux Crash Type: UNKNOWN READ Crash Address: 0x7ffadaa18a80 Crash State: Envoy::TestUtility::findCounter...