change scm connection to using ssh instead of https

Author: FlorianGWE

flyway-test-extensions/pom.xml

@@ -43,8 +43,8 @@
     <scm>
         <!-- TODO SCM must be corrected for github -->
         <url>https://github.com/flyway/flyway-test-extensions</url>
-        <connection>scm:git:ssh://github.com:flyway/flyway-test-extensions.git</connection>
-        <developerConnection>scm:git:ssh://github.com:flyway/flyway-test-extensions.git</developerConnection>
+        <connection>scm:git:ssh://git@github.com/flyway/flyway-test-extensions.git</connection>
+        <developerConnection>scm:git:ssh://git@github.com/flyway/flyway-test-extensions.git</developerConnection>
 
         <tag>HEAD</tag>
     </scm>