feat: time to bring back http2.0 support (#10230)

Bonus move our CI/CD to go1.14

cmd/storage-rest-client.go

@@ -663,7 +663,6 @@ func newStorageRESTClient(endpoint Endpoint) *storageRESTClient {
 		tlsConfig = &tls.Config{
 			ServerName: endpoint.Hostname(),
 			RootCAs:    globalRootCAs,
-			NextProtos: []string{"http/1.1"}, // Force http1.1
 		}
 	}