Remove Forgejo action

.forgejo/workflows/push.yaml

@@ -1,38 +0,0 @@
-on: [ push ]
-jobs:
-  blog-pim:
-    runs-on: docker
-    container:
-      image: git.kun.is/home/forgejo-nix-action:687d16c49ea7936068bac64ec68c480a9d681962
-    env:
-      GIT_COMMITTER_NAME: Forgejo Action
-      GIT_COMMITTER_EMAIL: noreply@git.kun.is
-      GIT_AUTHOR_NAME: Forgejo Action
-      GIT_AUTHOR_EMAIL: noreply@git.kun.is
-    steps:
-      - name: Clone repository
-        run: git clone ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}.git src
-      - name: Setup Nix cache
-        run: |
-          /bin/attic login local ${{ vars.ATTIC_URL }} ${{ secrets.ATTIC_TOKEN }}
-          /bin/attic use ${{ vars.ATTIC_CACHE }}
-      - name: Build image
-        run: nix build --out-link image ./src#packages.x86_64-linux.container-image
-      - name: Push image to Nix cache
-        run: /bin/attic push ${{ vars.ATTIC_CACHE }} image
-      - name: Log into container registry
-        run: /bin/skopeo login --tls-verify --username ${{ vars.RUNNER_USER }} --password ${{ secrets.RUNNER_TOKEN }} ${GITHUB_SERVER_URL}
-      - name: Push image to container registry
-        run: |
-          /bin/skopeo --insecure-policy copy docker-archive:image docker://${GITHUB_SERVER_URL#https://}/${GITHUB_REPOSITORY_OWNER}/blog-pim:latest
-          gitrev=$(git --git-dir src/.git --work-tree src rev-parse HEAD)
-          /bin/skopeo --insecure-policy copy docker-archive:image docker://${GITHUB_SERVER_URL#https://}/${GITHUB_REPOSITORY_OWNER}/blog-pim:$gitrev
-      - name: Clone nixos-servers repo
-        run: git clone https://${{ secrets.RUNNER_TOKEN }}@${GITHUB_SERVER_URL#https://}/home/nixos-servers.git nixos-servers
-      - name: Update Nix input on nixos-servers repo
-        run: nix flake lock --update-input blog-pim ./nixos-servers
-      - name: Push changes to nixos-servers repo
-        run: |
-          git --git-dir nixos-servers/.git --work-tree nixos-servers add -A
-          git --git-dir nixos-servers/.git --work-tree nixos-servers commit --message "Bump blog-pim Nix flake input"
-          git --git-dir nixos-servers/.git --work-tree nixos-servers push