Mozilla Moderator release

We did a small Moderator update today, which fixed a bug where all the profile links to mozillians.org were broken. The patch also included a data migration in order to sync the usernames and public avatars for all the profiles in the application with mozillians.org.

The full changelog of this release:

git log --pretty="%h %s" --no-merges  -5

b5212e4 Allow mozillians.org in img-src.
999aa51 Sync profile photos from mozillians.org.
c8b033a Sync all profiles with mozillians.org.
95b9d83 Bump oidc version.
9dab90c Do not use username_algo for mozillians.org profiles.