Update CircleCI image for Postgres 12.2 (shleeable)
https://github.com/tootsuite/mastodon/pull/13379

Update Vagrant box to Bionic (mfmfuyu)
https://github.com/tootsuite/mastodon/pull/13384

Add ability to filter audit log in admin UI (Gargron)
https://github.com/tootsuite/mastodon/pull/13381

Bump rspec-rails from 3.9.1 to 4.0.0 (dependabot-preview[bot])
https://github.com/tootsuite/mastodon/pull/13364

Polls improvements (Sasha-Sorokin)
https://github.com/tootsuite/mastodon/pull/13257

Fix `tootctl media remove-orphans` ignoring `PAPERCLIP_ROOT_PATH` (Gargron)
https://github.com/tootsuite/mastodon/pull/13375

Fix returning results when searching for URL with non-zero offset (Gargron)
https://github.com/tootsuite/mastodon/pull/13377

Fix pinning a column in web UI sometimes redirecting out of web UI (Gargron)
https://github.com/tootsuite/mastodon/pull/13376

Bump json-ld-preloaded from 3.1.1 to 3.1.2 (dependabot-preview[bot])
https://github.com/tootsuite/mastodon/pull/13365

Bump json-ld from 3.1.1 to 3.1.2 (dependabot-preview[bot])
https://github.com/tootsuite/mastodon/pull/13368

Bump bootsnap from 1.4.5 to 1.4.6 (dependabot-preview[bot])
https://github.com/tootsuite/mastodon/pull/13369

Bump tty-prompt from 0.20.0 to 0.21.0 (dependabot-preview[bot])
https://github.com/tootsuite/mastodon/pull/13366

Bump faker from 2.10.1 to 2.11.0 (dependabot-preview[bot])
https://github.com/tootsuite/mastodon/pull/13363

Bump sidekiq-unique-jobs from 6.0.20 to 6.0.21 (dependabot-preview[bot])
https://github.com/tootsuite/mastodon/pull/13367

Fix background jobs not using locks like they are supposed to (Gargron)
https://github.com/tootsuite/mastodon/pull/13361

Improve toot clicking areas (ariasuni)
https://github.com/tootsuite/mastodon/pull/13327

Fix re-sending of e-mail confirmation not being rate limited (Gargron)
https://github.com/tootsuite/mastodon/pull/13360