[java] allow setting version in the Http Client Config (SeleniumHQ#12919)

* [java] allow setting version in the Http Client Config

* [java] set client config version as string and convert in Jdk Client

Author: titusfortner

java/src/org/openqa/selenium/remote/http/jdk/JdkHttpClient.java

@@ -168,6 +168,11 @@ public void connectFailed(URI uri, SocketAddress sa, IOException ioe) {
       builder.sslContext(sslContext);
     }
 
+    String version = config.version();
+    if (version != null) {
+      builder.version(Version.valueOf(version));
+    }
+
     this.client = builder.build();
   }