.github/workflows: Run the tests on Ubuntu 22.04

#1319

.github/workflows/ubuntu-tests.yaml

@@ -0,0 +1,66 @@
+name: ubuntu-tests
+
+on:
+  pull_request:
+    branches:
+      - main
+  schedule:
+    - cron: '0 0 * * *'
+
+jobs:
+  ubuntu-jammy-tests:
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          submodules: true
+
+      - name: Install deb packages
+        run: |
+          sudo apt-get update
+          sudo apt-get install \
+            bash-completion \
+            bats \
+            golang \
+            meson \
+            podman \
+            shellcheck \
+            skopeo
+
+      - name: Checkout shadow
+        uses: actions/checkout@v3
+        with:
+          path: shadow-main/shadow
+          ref: 4.13
+          repository: shadow-main/shadow.git
+          submodules: true
+
+      - name: Install deb packages for shadow
+        run: |
+          sudo apt-get update
+          sudo apt-get install \
+            autoconf \
+            libpam0g-dev
+
+      - name: Set up build directory for shadow
+        run: |
+          autoreconf --force --install --verbose
+          ./configure --disable-silent-rules --with-libpam
+        working-directory: shadow-main/shadow
+
+      - name: Build shadow
+        run: make
+        working-directory: shadow-main/shadow
+
+      - name: Install shadow
+        run: sudo make install
+        working-directory: shadow-main/shadow
+
+      - name: Download Go modules
+        run: go mod download -x
+        working-directory: src
+
+      - name: Set up build directory
+        run: meson setup --fatal-meson-warnings builddir