refactor end-to-end.yml workflow to use a top-level end-to-end.sh

.forgejo/prepare-end-to-end/action.yml

@@ -0,0 +1,19 @@
+runs:
+  using: "composite"
+  steps:
+      - uses: https://code.forgejo.org/actions/setup-forgejo@v2
+        with:
+          install-only: true
+      - run: forgejo-binary.sh ensure_user forgejo
+      - uses: actions/download-artifact@v3
+        with:
+          name: forgejo-dev
+          path: /srv/forgejo-binaries
+      - name: chown/chmod /srv/forgejo-binaries
+        run: |
+          chmod +x /srv/forgejo-binaries/*
+          chown -R forgejo /srv/forgejo-binaries
+      - run: |
+          script=$(pwd)/end-to-end.sh
+          $script run dependencies
+          $script clobber