Update LibAFL and test for regressions. #777

Job	Run time
Test (bloaty_fuzz_target)	37m 59s
Test (bloaty_fuzz_target_52948c)	44m 18s
Test (curl_curl_fuzzer_http)	41m 42s
Test (freetype2_ftfuzzer)	34m 48s
Test (harfbuzz_hb-shape-fuzzer)	36m 32s
Test (harfbuzz_hb-shape-fuzzer_17863b)	17m 52s
Test (jsoncpp_jsoncpp_fuzzer)	30m 52s
Test (lcms_cms_transform_fuzzer)	32m 5s
Test (libjpeg-turbo_libjpeg_turbo_fuzzer)	36m 3s
Test (libpcap_fuzz_both)	32m 20s
Test (libpng_libpng_read_fuzzer)	31m 47s
Test (libxml2_xml)	31m 58s
Test (libxml2_xml_e85b9b)	31m 40s
Test (libxslt_xpath)	33m 29s
Test (mbedtls_fuzz_dtlsclient)	35m 46s
Test (mbedtls_fuzz_dtlsclient_7c6b0e)	36m 50s
Test (openh264_decoder_fuzzer)	31m 42s
Test (openssl_x509)	36m 47s
Test (openthread_ot-ip6-send-fuzzer)	32m 35s
Test (php_php-fuzz-parser_0dbedb)	33m 34s
Test (proj4_proj_crs_to_crs_fuzzer)	39m 43s
Test (re2_fuzzer)	31m 29s
Test (sqlite3_ossfuzz)	33m 58s
Test (stb_stbi_read_fuzzer)	30m 43s
Test (systemd_fuzz-link-parser)	35m 43s
Test (vorbis_decode_fuzzer)	30m 53s
Test (woff2_convert_woff2ttf_fuzzer)	31m 1s
Test (zlib_zlib_uncompress_fuzzer)	30m 37s
	15h 44m 46s

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