Gitea Actions reads exclusively from .gitea/workflows/, not from
.github/workflows/. Since the cutover in v1.4.3 only the security
workflow has been running — release and forge-announce silently sat in
the wrong directory and never fired on any tag push. v1.4.3 must have
been released manually.
Move build, release and forge-announce yamls to .gitea/workflows/. The
.github/forge-posts/ and .github/release-footer.md data files stay where
they are; the workflows reference them by repo-relative path and that
keeps working.
For the v1.4.4 backfill: workflow_dispatch via the Gitea web UI with
tag=v1.4.4 will run release.yml + forge-announce.yml against the tagged
tree (which doesn't contain this migration). The dispatch yaml itself
is read from the default branch, not the tag, so the missing yamls in
the v1.4.4 tag tree don't matter.
