net: Don't care if CryptoProvider has already been installed.

The second time this is done within a single process, it returns an error.
We might want to fix it in a better way.

src/net/p2p.rs

@@ -83,7 +83,7 @@ impl P2p {
         let settings = Arc::new(settings);
 
         // Register a CryptoProvider for rustls
-        CryptoProvider::install_default(ring::default_provider()).unwrap();
+        let _ = CryptoProvider::install_default(ring::default_provider());
 
         let self_ = Arc::new(Self {
             executor,