chore: move rcgen to workspace dependency

Pull-Request: libp2p#5446.

Author: jxs

Cargo.toml

@@ -129,6 +129,7 @@ tracing = "0.1.37"
 tracing-subscriber = "0.3"
 futures = "0.3.30"
 ring = "0.17.8"
+rcgen = "0.11.3"
 
 [patch.crates-io]
 

transports/tls/Cargo.toml

@@ -13,7 +13,7 @@ futures = { workspace = true }
 futures-rustls = { workspace = true }
 libp2p-core = { workspace = true }
 libp2p-identity = { workspace = true }
-rcgen = "0.11.3"
+rcgen = { workspace = true }
 ring = { workspace = true }
 thiserror = "1.0.61"
 webpki = { version = "0.101.4", package = "rustls-webpki", features = ["std"] }

transports/webrtc/Cargo.toml

@@ -23,7 +23,7 @@ libp2p-identity = { workspace = true }
 libp2p-webrtc-utils = { workspace = true }
 multihash = { workspace = true }
 rand = "0.8"
-rcgen = "0.11.3"
+rcgen = { workspace = true }
 serde = { version = "1.0", features = ["derive"] }
 stun = "0.5"
 thiserror = "1"

transports/websocket/Cargo.toml

@@ -29,7 +29,7 @@ libp2p-tcp = { workspace = true, features = ["async-io"] }
 libp2p-dns = { workspace = true, features = ["async-std"] }
 libp2p-identity = { workspace = true, features = ["rand"] }
 async-std = { version = "1.6.5", features = ["attributes"] }
-rcgen = "0.11.3"
+rcgen = { workspace = true }
 
 # Passing arguments to the docsrs builder in order to properly document cfg's.
 # More information: https://docs.rs/about/builds#cross-compiling