Fix SSL trustServerCertificate check

The test for whether to automatically trust the SSL certificate of
the server is backwards. This fixes it so that a value of "true"
skips SSL certificate validation and trusts all certificates.

src/main/java/org/mariadb/jdbc/internal/mysql/MySQLProtocol.java

@@ -191,7 +191,7 @@ public class MySQLProtocol implements Protocol {
 
     private SSLSocketFactory getSSLSocketFactory(boolean trustServerCertificate)  throws QueryException
     {
-        if (jdbcUrl.getOptions().trustServerCertificate
+        if (!jdbcUrl.getOptions().trustServerCertificate
                 && jdbcUrl.getOptions().serverSslCert == null) {
             return (SSLSocketFactory)SSLSocketFactory.getDefault();
         }