Add some more simple builds to CI

.forgejo/workflows/push.yaml

@@ -7,3 +7,22 @@ jobs:
       - uses: actions/checkout@v4
       - run: |
           nix flake check
+  dev-shell:
+    runs-on: cache.kaareskovgaard.net
+    steps:
+      - uses: actions/checkout@v4
+      - run: |
+          nix build --no-link '.#devShells.x86_64-linux.default'
+  rust-packages:
+    runs-on: cache.kaareskovgaard.net
+    steps:
+      - uses: actions/checkout@v4
+      - run: |
+          nix build --no-link '.#packages.x86_64-linux.hetzner-static-ip'
+          nix build --no-link '.#packages.x86_64-linux.openbao-helper'
+  terraform-providers:
+    runs-on: cache.kaareskovgaard.net
+    steps:
+      - uses: actions/checkout@v4
+      - run: |
+          nix build --no-link '.#packages.x86_64-linux.terraform-provider-unifi'