rust: hoist libc dependency into workspace

rust/Cargo.toml.in

@@ -35,6 +35,7 @@ brotli = "~8.0.1"
 # clap 4.5.58 requires clap_lex 1 which requires edition2024
 clap = { version = "=4.5.57", default-features = false, features = ["std", "derive", "help", "usage"] }
 lazy_static = "~1.5.0"
+libc = "~0.2.172"
 lzma-rs = { version = "~0.2.0", features = ["stream"] }
 once_cell = "1.21.3"
 regex = "~1.5.6"
@@ -87,7 +88,7 @@ ipsec-parser = "~0.7.0"
 snmp-parser = "~0.10.0"
 tls-parser = "~0.11.0"
 x509-parser = "~0.16.0"
-libc = "~0.2.172"
+libc.workspace = true
 sha2 = "~0.10.9"
 digest = "~0.10.7"
 sha1 = "~0.10.6"

rust/htp/Cargo.toml.in

@@ -24,7 +24,7 @@ crate-type = ["staticlib", "rlib", "cdylib"]
 [dependencies]
 base64.workspace = true
 bstr = "1.12.0"
-libc = "0.2"
+libc.workspace = true
 nom = "8.0.0"
 lzma-rs.workspace = true
 flate2 = { version = "~1.0.35", features = ["zlib-default"], default-features = false }