Fix: Branch main could not be tested easily

This deploys the main branch automatically on the staging servers for system testing.

.github/workflows/deploy-main-on-staging.yml

@@ -0,0 +1,73 @@
+# This workflow automatically deploys main on staging
+name: "Deploy `main` automatically on staging"
+
+on:
+  push:
+#    branches:
+#      - main
+
+jobs:
+  deploy_staging_servers:
+    name: "Deploying on ${{ matrix.staging_servers.hostname }}"
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        staging_servers:
+          - hostname: "ovh.staging.aleph.sh"
+            host_keys: | # Use `ssh-keyscan -H host` to obtain the host keys  
+              |1|orGVLr9O7BxtBi/Z7x7IUNDCHqQ=|1dGYJsc6Qrz09BDzpdNGPKb3DKM= ssh-rsa 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
+              |1|oS92sSDotqSXRoAz1JEKUvD8ULc=|5mHvAIWjnMB7b0rYQBZ4IpihYjA= ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBFMjvE8AlBf1nJucFehBcIF6DO0tbNuOz8LyBQTt/6FQ0if2YP1ABuN0fauHOtxXLzonoHeaL6ZWBhjHfDex6V8=
+              |1|LsiOstaTi9lHXJQlX2XCw7CISSY=|i5G9ELrrtzZbE+GbcmauH218mY4= ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJuASD1f5wgW3zgwqFjPWc8OF/AgZfHQUkyQ016sS+Fj
+            os: "debian-12"
+            make_target: "all-podman-debian-12"
+            artifact_name: "aleph-vm.debian-12.deb"
+
+          - hostname: "hetzner.staging.aleph.sh"
+            host_keys: |
+              |1|rq5/ijUdR9RR/2hUJxY6e+WxgYM=|HHkM5wCi0e1tLd/YAvB1fhRx6ZA= ssh-rsa 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
+              |1|0NHnYZBjWoH9wGUXB4qD7x/iv68=|OvNcRso1gawWuXoDk567eK9pQ1A= ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBFMjvE8AlBf1nJucFehBcIF6DO0tbNuOz8LyBQTt/6FQ0if2YP1ABuN0fauHOtxXLzonoHeaL6ZWBhjHfDex6V8=
+              |1|V0i9hIon1ao2vVMpdCg64IKzWjY=|lQrPhlTT2XAhyuUprAFm+Gu52XI= ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJuASD1f5wgW3zgwqFjPWc8OF/AgZfHQUkyQ016sS+Fj
+            os: "debian-12"
+            make_target: "all-podman-debian-12"
+            artifact_name: "aleph-vm.debian-12.deb"
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          # Fetch the whole history for all tags and branches (required for aleph.__version__)
+          fetch-depth: 0
+
+      - run: |
+          cd packaging && make ${{ matrix.staging_servers.make_target }} && cd ..
+          ls packaging/target
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: ${{ matrix.staging_servers.artifact_name }}
+          path: packaging/target/${{ matrix.staging_servers.artifact_name }}
+
+      - name: Setup SSH private key
+        run: |
+          mkdir ~/.ssh
+          echo STAGING_SSH_PRIVATE_KEY | base64 --decode > ~/.ssh/id_ed25519
+          chmod 0700 ~/.ssh
+          chmod 0600 ~/.ssh/id_ed25519
+        env:
+          # Create using:
+          # ssh-keygen -t ed25519 -f ./id_ed25519
+          # cat ./id_ed25519 | base64 --wrap=0
+          STAGING_SSH_PRIVATE_KEY: ${{ secrets.STAGING_SSH_PRIVATE_KEY }}
+
+      - name: Install Aleph-VM on the Staging servers
+        run: |
+          echo ${{ matrix.staging_servers.host_keys }} > ~/.ssh/known_hosts
+
+          # Wait for /var/lib/apt/lists/lock to be unlocked on the remote host via SSH.
+          while ssh root@${SERVER_IPV4} lsof /var/lib/apt/lists/lock; do sleep 1; done
+
+          scp packaging/target/${{ matrix.staging_servers.package_name }} root@${SERVER_IPV4}:/opt
+          ssh root@${SERVER_IPV4} DEBIAN_FRONTEND=noninteractive "apt-get -o DPkg::Lock::Timeout=60 install -y /opt/${{ matrix.staging_servers.package_name }}"
+
+          # Allow some time for IPFS Kubo to start
+          sleep 5