perf(lex): Drop a dependency

With the size of our haystacks, it doesn't seem worth pulling in an
extra depedency.  Pretty torn on this because nearly anything else will
pull it in (regex, tokio, etc).

clap_lex/Cargo.toml

@@ -36,4 +36,4 @@ pre-release-replacements = [
 bench = false
 
 [dependencies]
-os_str_bytes = "6.0"
+os_str_bytes = { version = "6.0", default-features = false, features = ["raw_os_str"] }