ci: remove `CARGO_FEATURES_OPTION` #217

Job	Run time
Build the fuzzers	44s
Run the fuzzers (fuzz_cmp, true)	47s
Run the fuzzers (fuzz_cmp_args, true)	54s
Run the fuzzers (fuzz_ed, true)	43s
Run the fuzzers (fuzz_normal, true)	48s
Run the fuzzers (fuzz_patch, true)	41s
	4m 37s

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