Explicitly define build process for CodeQL analysis

The build failed because the automatic build installed Pandoc, which
made the build try to build PDF documentation, but some LaTeX
components were missing. There's no point in building the PDF at all
during this workflow.

.github/workflows/analysis.yaml

@@ -104,7 +104,11 @@ jobs:
         uses: github/codeql-action/init@v3
         with:
           languages: cpp
-      - name: Autobuild
-        uses: github/codeql-action/autobuild@v3
+      - name: autoreconf
+        run: autoreconf -fiv
+      - name: configure
+        run: ./configure --disable-pdf-doc
+      - name: make
+        run: make -j4
       - name: Perform CodeQL Analysis
         uses: github/codeql-action/analyze@v3