update wp-notifications & provision test trac instance

As per dotorg Slack could ~/bin/wp-notifications on svn1 tracTrac Trac is the place where contributors create issues for bugs or feature requests much like GitHub.https://core.trac.wordpress.org/. please be updated to the latest metaMeta Meta is a term that refers to the inside workings of a group. For us, this is the team that works on internal WordPress sites like WordCamp Central and Make WordPress. version?
Additionally, for future ease of bug fixes, could it be added to svnup-meta-checkouts.sh as well?

This is part of some GDPR work for Trac, as a result, if we could also provision a test trac instance for testing that would be appreciated – eg test.trac.wordpress.org which could be limited to systems IPs only. This would primarily be useful as testing destructive actions against production trac installs could be destructive.