expose basic model check in CI

Signed-off-by: Kiara Grouwstra <kiara@procolix.eu>

.forgejo/workflows/deployment-model-basic.yaml

@@ -0,0 +1,22 @@
+name: deployment-model-basic
+
+on:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+  push:
+    branches:
+      - main
+
+concurrency:
+  cancel-in-progress: true
+  group: ${{ forgejo.workflow }}-${{ forgejo.event.pull_request.number || forgejo.ref }}
+
+jobs:
+  deployment-model-basic:
+    runs-on: native
+    steps:
+      - uses: actions/checkout@v4
+      - run: nix build .#checks.x86_64-linux.deployment-model-basic -vL