message: Updated JIRA pom.xml to refer to correct loc
  Had problems building when pointing to `m2proxy.atlassian.net` which doesn't seem to exist any longer (DNS lookup failed from multiple locations). Successor appears to be `maven.atlassian.net`. After changing, JIRA collector build was successful.
diff: <repositories>
  <repository>
  <id>atlassian-public</id>
  - <url>https://m2proxy.atlassian.com/repository/public</url>
  + <url>https://maven.atlassian.com/repository/public</url>
  <snapshots>
  <enabled>true</enabled>
  <updatePolicy>daily</updatePolicy>
  <pluginRepositories>
  <pluginRepository>
  <id>atlassian-public</id>
  - <url>https://m2proxy.atlassian.com/repository/public</url>
  + <url>https://maven.atlassian.com/repository/public</url>
  <releases>
  <enabled>true</enabled>
  <checksumPolicy>warn</checksumPolicy>
  