fuzz: try to fix build issue

Ref: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36474
See: https://oss-fuzz-build-logs.storage.googleapis.com/log-fe51f615-a13f-4685-b8d8-de4583da1ebd.txt

Author: BurntSushi

fuzz/Cargo.toml

@@ -28,7 +28,7 @@ path = "fuzz_targets/fuzz_regex_match.rs"
 opt-level = 3
 debug = true
 
-[profile.debug]
+[profile.dev]
 inherits = "release"
 
 [profile.test]