ci: run some basic tests to check our rpm and deb packages work

.github/workflows/build_release_assets.yml

@@ -254,3 +254,47 @@ jobs:
             packages/ggshield-*.zip
             packages/ggshield-*.rpm
             packages/ggshield_*.deb
+
+  linux_package_smoke_tests:
+    needs: build_os_packages
+    runs-on: ubuntu-22.04
+    container: ${{ matrix.image }}
+    strategy:
+      fail-fast: false
+      matrix:
+        image:
+          - debian:oldstable
+          - debian:stable
+          - rockylinux/rockylinux:8.8
+          - opensuse/leap
+
+    steps:
+      - name: Download OS packages
+        uses: actions/download-artifact@v4
+        with:
+          pattern: os-packages-ubuntu-22.04
+          path: packages
+          merge-multiple: true
+
+      - name: Setup
+        run: |
+          case "${{ matrix.image }}" in
+            debian:*)
+              apt update
+              apt install --no-install-recommends -y git
+              dpkg -i packages/*.deb
+              ;;
+            rockylinux*)
+              yum install -y git
+              rpm -i packages/*.rpm
+              ;;
+            opensuse*)
+              zypper install git
+              rpm -i packages/*.rpm
+              ;;
+          esac
+
+      - name: Smoke test
+        run: |
+          ggshield --version
+          ggshield --help