chore(revert): fix: alternative route of getting latest Gitea version

Revert 53375283d4
fix: alternative route of getting latest Gitea version

Use git ls-remote and git-mirror instead of the API

$ version=1.23
$ git ls-remote --refs --tags --sort=version:refname https://git-mirror.forgejo.org/go-gitea/gitea "v$version*" | sed -n -E -e "s|^.*/v($version[\.0-9]*)$|\1|p"
1.23.0
1.23.1
1.23.2
1.23.3
1.23.4
1.23.5
1.23.6
1.23.7

.forgejo/workflows/gitea-upgrade.yml

@@ -1,36 +0,0 @@
-#
-#
-# https://code.forgejo.org/forgejo/end-to-end/settings/actions
-#
-# secrets.MIRROR_TOKEN_GITEA
-#   https://code.forgejo.org/forgejo-mirror scope read:repository
-#
-
-on:
-  pull_request_target:
-  push:
-    branches:
-      - 'main'
-      - 'wip-gitea'
-
-jobs:
-  gitea_upgrade:
-    name: gitea upgrade
-    runs-on: lxc-bookworm
-    steps:
-      - uses: https://data.forgejo.org/actions/checkout@v4
-      - name: prepare upload
-        run: |
-          mkdir -p /tmp/forgejo-upload
-          touch /tmp/forgejo-upload/PLACEHOLDER
-      - uses: actions/upload-artifact@v3
-        with:
-          name: forgejo-dev
-          path: /tmp/forgejo-upload
-      - uses: ./.forgejo/prepare-end-to-end
-      - name: gitea upgrades
-        run: |
-            su forgejo -c "./end-to-end.sh test_gitea_upgrades ${{ secrets.MIRROR_TOKEN_GITEA }}"
-      - name: full logs
-        if: always()
-        run: su forgejo -c "./end-to-end.sh show_logs"