Fixup libafl_fuzzbench-based fuzzers #991

Job	Run time
Test (bloaty_fuzz_target)	1m 17s
Test (bloaty_fuzz_target_52948c)	1m 25s
Test (curl_curl_fuzzer_http)	1m 41s
Test (freetype2_ftfuzzer)	1m 19s
Test (harfbuzz_hb-shape-fuzzer)	1m 28s
Test (harfbuzz_hb-shape-fuzzer_17863b)	1m 25s
Test (jsoncpp_jsoncpp_fuzzer)	1m 21s
Test (lcms_cms_transform_fuzzer)	1m 18s
Test (libjpeg-turbo_libjpeg_turbo_fuzzer)	1m 18s
Test (libpcap_fuzz_both)	1m 39s
Test (libpng_libpng_read_fuzzer)	1m 35s
Test (libxml2_xml)	1m 51s
Test (libxml2_xml_e85b9b)	1m 37s
Test (libxslt_xpath)	1m 22s
Test (mbedtls_fuzz_dtlsclient)	1m 20s
Test (mbedtls_fuzz_dtlsclient_7c6b0e)	1m 24s
Test (mruby_mruby_fuzzer_8c8bbd)	37m 46s
Test (openh264_decoder_fuzzer)	1m 20s
Test (openssl_x509)	1m 19s
Test (openthread_ot-ip6-send-fuzzer)	1m 16s
Test (php_php-fuzz-parser_0dbedb)	1m 19s
Test (proj4_proj_crs_to_crs_fuzzer)	1m 17s
Test (re2_fuzzer)	1m 27s
Test (sqlite3_ossfuzz)	1m 24s
Test (stb_stbi_read_fuzzer)	1m 37s
Test (systemd_fuzz-link-parser)	1m 18s
Test (vorbis_decode_fuzzer)	1m 20s
Test (woff2_convert_woff2ttf_fuzzer)	1m 24s
Test (zlib_zlib_uncompress_fuzzer)	1m 41s
	1h 17m 48s

Provide feedback