Add HTTP/3 fuzzing harness #118

Job	Run time
BuildFuzzers	16m 3s
RunFuzzers (curl_fuzzer_dict)	1m 36s
RunFuzzers (curl_fuzzer_file)	2m 53s
RunFuzzers (curl_fuzzer_ftp)	2m 52s
RunFuzzers (curl_fuzzer_gopher)	2m 55s
RunFuzzers (curl_fuzzer_http)	2m 52s
RunFuzzers (curl_fuzzer_https)	2m 51s
RunFuzzers (curl_fuzzer_http3)	2m 51s
RunFuzzers (curl_fuzzer_imap)	2m 55s
RunFuzzers (curl_fuzzer_ldap)	2m 48s
RunFuzzers (curl_fuzzer_mqtt)	2m 54s
RunFuzzers (curl_fuzzer_pop3)	2m 50s
RunFuzzers (curl_fuzzer_rtmp)	2m 56s
RunFuzzers (curl_fuzzer_rtsp)	2m 50s
RunFuzzers (curl_fuzzer_scp)	2m 50s
RunFuzzers (curl_fuzzer_sftp)	2m 58s
RunFuzzers (curl_fuzzer_smb)	2m 50s
RunFuzzers (curl_fuzzer_smtp)	2m 56s
RunFuzzers (curl_fuzzer_tftp)	3m 1s
RunFuzzers (curl_fuzzer_ws)	2m 54s
RunFuzzers (curl_fuzzer)	2m 57s
RunFuzzers (fuzz_url)	2m 50s
	1h 15m 22s

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