Short intermittent service disruptions while we upgrade to the latest release of Mastodon.

Full changelog: https://github.com/mastodon/mastodon/releases/tag/v4.1.0

Upgrade and optimisation of the database, may lead to short intermittent interruptions of access to the site.

Small bugfix install, nothing major.

Patchnotes: https://github.com/mastodon/mastodon/releases/tag/v4.0.2

Planned upgrade to Mastodon 4.
The site will be unavailable on short periods of time during this window.

Thank you! :)