No longer use the custom test-env image, it is unecessary technical
debt.
Also upgrade to bitnami/minio:2023.8.31 to align with what Gitea tests
(cherry picked from commit d9b77fd273)
Conflicts:
.forgejo/workflows/testing.yml
* mysql was mysql-8 in v1.21 and below
* No MINIO testing
* go 1.20 instead of go 1.21
(cherry picked from commit f9d75d4705)
(cherry picked from commit 64f76f4ab2)
(cherry picked from commit 5d02454155)
[CI] Forgejo Actions workflows
(cherry picked from commit 3ff59b5379)
(cherry picked from commit 8af826a6f7)
(cherry picked from commit d7c09d9cc8)
[CI] use the docker label instead of ubuntu-latest
(cherry picked from commit b6a6470db6)
[CI] all tests need compliance before proceeding
(cherry picked from commit b35c496f2c)
(cherry picked from commit 36a4148a8e)
(cherry picked from commit 7ffcffa653)
(cherry picked from commit 8a246d296e)
(cherry picked from commit 4b5d14ab8d)
(cherry picked from commit 98dfb019a4)
(cherry picked from commit f0d3f53275)
