Add codeql workflow

.github/workflows/build.yml

@@ -0,0 +1,39 @@
+name: Build libppd
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            build-essential \
+            autoconf \
+            automake \
+            autopoint \
+            gettext \
+            libtool \
+            pkg-config \
+            libcups2-dev \
+            libcupsfilters-dev \
+            ghostscript \
+            poppler-utils \
+            mupdf-tools 
+
+      - name: Build project
+        run: |
+          ./autogen.sh
+          ./configure
+          make
+      
+      - name: Run tests
+        run: make check

.github/workflows/codeql-analysis.yml

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+name: CodeQL
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  analyze:
+    name: CodeQL Analyze
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      security-events: write
+
+    strategy:
+      matrix:
+        language: [ 'cpp' ]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v4
+        with:
+          languages: ${{ matrix.language }}
+          queries: +security-and-quality
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            build-essential \
+            autoconf \
+            automake \
+            autopoint \
+            gettext \
+            libtool \
+            libtool-bin \
+            pkg-config \
+            libcups2-dev \
+            libcupsfilters-dev \
+            ghostscript \
+            mupdf-tools \
+            poppler-utils
+
+      - name: Build project
+        run: |
+          ./autogen.sh
+          ./configure
+          make
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v4
+