Minor version container tags/aliases

[dryya]

Hi, thanks for miniflux! Would it be possible to alias the latest patch release tag to vMajor.Minor on your container registry? For example, just as latest currently points to 2.2.12, ideally both ghcr.io/miniflux/miniflux:2.2 and ghcr.io/miniflux/miniflux:2 would point to it as well.

Motivation: I run it with podman which offers a podman auto-update command and podman-auto-update systemd user service. For some other services that follow SemVer, I use the image tagged v1 or v1.2 with AutoUpdate=registry so that I can get bug fixes unattended without possible breaking changes from following a latest tag or equivalent.