Update LibAFL and test for regressions. #778

Job	Run time
Test (bloaty_fuzz_target)	33m 33s
Test (bloaty_fuzz_target_52948c)	42m 57s
Test (curl_curl_fuzzer_http)	38m 58s
Test (freetype2_ftfuzzer)	33m 57s
Test (harfbuzz_hb-shape-fuzzer)	30m 52s
Test (harfbuzz_hb-shape-fuzzer_17863b)	16m 29s
Test (jsoncpp_jsoncpp_fuzzer)	28m 0s
Test (lcms_cms_transform_fuzzer)	28m 23s
Test (libjpeg-turbo_libjpeg_turbo_fuzzer)	30m 3s
Test (libpcap_fuzz_both)	27m 33s
Test (libpng_libpng_read_fuzzer)	27m 12s
Test (libxml2_xml)	27m 8s
Test (libxml2_xml_e85b9b)	28m 32s
Test (libxslt_xpath)	30m 20s
Test (mbedtls_fuzz_dtlsclient)	31m 44s
Test (mbedtls_fuzz_dtlsclient_7c6b0e)	31m 21s
Test (openh264_decoder_fuzzer)	27m 13s
Test (openssl_x509)	34m 7s
Test (openthread_ot-ip6-send-fuzzer)	29m 16s
Test (php_php-fuzz-parser_0dbedb)	30m 36s
Test (proj4_proj_crs_to_crs_fuzzer)	35m 9s
Test (re2_fuzzer)	27m 18s
Test (sqlite3_ossfuzz)	28m 45s
Test (stb_stbi_read_fuzzer)	25m 59s
Test (systemd_fuzz-link-parser)	31m 17s
Test (vorbis_decode_fuzzer)	29m 38s
Test (woff2_convert_woff2ttf_fuzzer)	26m 48s
Test (zlib_zlib_uncompress_fuzzer)	26m 4s
	13h 59m 12s

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