fix: Enable HTTP/2 for gRPC connections

The client connector only enabled HTTP/1.1 but native gRPC requires HTTP/2.
This caused handshake timeouts when trying to connect to the gRPC endpoint.

Added .enable_http2() to all hyper_rustls connector builders.

Author: devonshigaki

bindings/c/src/lib.rs

@@ -270,6 +270,7 @@ pub unsafe extern "C" fn libsql_open_sync_with_config(
                 .with_webpki_roots()
                 .https_or_http()
                 .enable_http1()
+                .enable_http2()
                 .build();
             builder = builder.connector(https);
         }
@@ -315,6 +316,7 @@ pub unsafe extern "C" fn libsql_open_sync_with_config(
             .with_webpki_roots()
             .https_or_http()
             .enable_http1()
+            .enable_http2()
             .build();
         builder = builder.connector(https);
     }
@@ -497,6 +499,7 @@ unsafe fn libsql_open_remote_internal(
             .with_webpki_roots()
             .https_or_http()
             .enable_http1()
+            .enable_http2()
             .build();
         builder = builder.connector(https);
     }

libsql/examples/flutter.rs

@@ -12,6 +12,7 @@ async fn main() {
             .with_webpki_roots()
             .https_or_http()
             .enable_http1()
+            .enable_http2()
             .build();
 
         Builder::new_remote(url, token)

libsql/src/database.rs

@@ -772,6 +772,7 @@ fn connector(
         .map_err(crate::Error::InvalidTlsConfiguration)?
         .https_or_http()
         .enable_http1()
+        .enable_http2()
         .wrap_connector(http))
 }