Update msrv

Avoid Arc::into_inner since it requires 1.70

.github/workflows/check.yml

@@ -99,7 +99,7 @@ jobs:
     # https://docs.github.com/en/actions/learn-github-actions/contexts#context-availability
     strategy:
       matrix:
-        msrv: ["1.57.0"] # base64 0.21 requires 1.57
+        msrv: ["1.65.0"]
     name: ubuntu / ${{ matrix.msrv }}
     steps:
       - uses: actions/checkout@v4

src/client_builder.rs

@@ -21,7 +21,7 @@ use std::sync::Arc;
 
 #[cfg(feature = "rustls-tls")]
 #[derive(Debug)]
-struct NoCertVerification(rustls::client::WebPkiServerVerifier);
+struct NoCertVerification(Arc<rustls::client::WebPkiServerVerifier>);
 
 #[cfg(feature = "rustls-tls")]
 impl rustls::client::danger::ServerCertVerifier for NoCertVerification {
@@ -365,12 +365,9 @@ where
             config
                 .dangerous()
                 .set_certificate_verifier(Arc::new(NoCertVerification(
-                    Arc::into_inner(
                     rustls::client::WebPkiServerVerifier::builder(Arc::new(CACERTS.clone()))
                         .build()
                         .expect("can construct standard verifier"),
-                    )
-                    .expect("just constructed, so should only be one"),
                 )));
         }
         let ssl_conn: RustlsConnector = config.into();