Syn: maven url needs to be https now

[bseeger]

The maven URL needs to be HTTPS or the project won't build.

Could not resolve all dependencies for configuration ':compileClasspath'.
> Could not resolve com.auth0:java-jwt:3.1.0.
  Required by:
      :Syn:unspecified
   > Could not resolve com.auth0:java-jwt:3.1.0.
      > Could not get resource 'http://repo.maven.apache.org/maven2/com/auth0/java-jwt/3.1.0/java-jwt-3.1.0.pom'.
         > Could not GET 'http://repo.maven.apache.org/maven2/com/auth0/java-jwt/3.1.0/java-jwt-3.1.0.pom'. Received status code 501 from server: HTTPS Required```

Builds fine once changed to HTTPS