Change Maven central URL to HTTPS

Author: backpaper0

pom.xml

@@ -204,7 +204,7 @@
             </snapshots>
             <id>central</id>
             <name>Maven Central repository</name>
-            <url>http://repo1.maven.org/maven2/</url>
+            <url>https://repo1.maven.org/maven2/</url>
         </repository>
     </repositories>
 </project>