ci: package correct format

`packpack` tool for debian packaging required several small files
with format and compat data.

Author: Col-Waltz

.github/workflows/citests.yml

@@ -0,0 +1,61 @@
+name: citests
+
+on:
+  push:
+  workflow_dispatch:
+
+jobs:
+  package:
+    runs-on: ubuntu-24.04
+    needs: version-check
+
+    strategy:
+      fail-fast: false
+      matrix:
+        platform:
+          - { os: 'debian', dist: 'stretch' }
+          - { os: 'debian', dist: 'bullseye' }
+          - { os: 'ubuntu', dist: 'xenial' }
+          - { os: 'ubuntu', dist: 'bionic' }
+          - { os: 'ubuntu', dist: 'focal' }
+          - { os: 'ubuntu', dist: 'groovy' }
+          - { os: 'ubuntu', dist: 'jammy' }
+
+    env:
+      OS: ${{ matrix.platform.os }}
+      DIST: ${{ matrix.platform.dist }}
+      RPM_SPEC: rpm/sharded-queue.spec
+
+    steps:
+      - name: Clone the module
+        uses: actions/checkout@v4
+        # `actions/checkout` performs shallow clone of repo. To provide
+        # proper version of the package to `packpack` we need to have
+        # complete repository, otherwise it will be `0.0.1`.
+        with:
+          fetch-depth: 0
+
+      - name: Clone the packpack tool
+        uses: actions/checkout@v4
+        with:
+          repository: packpack/packpack
+          path: packpack
+
+      - name: Fetch tags
+        # Found that Github checkout Actions pulls all the tags, but
+        # right it deannotates the testing tag, check:
+        #   https://github.com/actions/checkout/issues/290
+        # But we use 'git describe ..' calls w/o '--tags' flag and it
+        # prevents us from getting the needed tag for packages version
+        # setup. To avoid of it, let's fetch it manually, to be sure
+        # that all tags will exist always.
+        run: git fetch --tags -f
+
+      - name: Check packages changelog
+        if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
+        run: |
+          ./debian/update_debian_changelog.sh "${GITHUB_REF#refs/tags/}"
+          ./rpm/update_rpm_changelog.sh "${GITHUB_REF#refs/tags/}"
+
+      - name: Create packages
+        run: ./packpack/packpack

debian/compat

@@ -0,0 +1 @@
+9

debian/source/format

@@ -0,0 +1 @@
+3.0 (quilt)