ci: create Debian packages on GHA, too

.github/workflows/gcc.yml

@@ -6,6 +6,7 @@ jobs:
   gcc:
     runs-on: ubuntu-22.04
     strategy:
+      fail-fast: false
       matrix:
         version: [9, 10, 11, 12]
     steps:

.github/workflows/package.yml

@@ -0,0 +1,40 @@
+name: Debian package
+
+#on:
+#  push:
+#    tags:
+#      - v*
+
+on: push
+
+jobs:
+  package:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-20.04, ubuntu-22.04 ]
+    runs-on: ${{ matrix.os }}
+    steps:
+      # Checks-out the repository under $GITHUB_WORKSPACE.
+      - name: Git checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Install Debian packages
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends build-essential bzip2 ca-certificates debhelper devscripts fakeroot g++ git lsb-release tar wget
+          sudo apt-get install -y --no-install-recommends catch cmake g++ libgl-dev libglfw3-dev libwebp-dev pkg-config
+      - name: Build package
+        run: |
+          export CXX=g++
+          export CC=gcc
+          cd "$GITHUB_WORKSPACE"
+          ./ci/02-create-package.sh
+          pwd
+          ls -lah
+      - name: Upload artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: package-${{ matrix.os }}
+          path: webp*.deb