CI(docs): Only run doxygen after build as lex/yacc files are generated during build

Author: echoix

.github/workflows/documentation.yml

@@ -97,7 +97,7 @@ jobs:
         run: |
           echo "LD_LIBRARY_PATH=$HOME/install/lib" >> "$GITHUB_ENV"
 
-      - name: Configure core
+      - name: Build core
         run: |
           cd grass
           export INSTALL_PREFIX="$HOME/install"
@@ -125,37 +125,6 @@ jobs:
             --with-sqlite \
             --with-tiff \
             --with-zstd
-
-      - name: Build Programmer's Manual with doxygen
-        if: false
-        run: |
-          cd grass
-          make htmldocs
-
-      - name: Make the doxygen results available (html)
-        if: false
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: doxygen-site
-          if-no-files-found: error
-          path: |
-            grass/html
-          retention-days: 3
-
-      - name: Make the doxygen results available (latex)
-        if: false
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: doxygen-site-latex
-          if-no-files-found: error
-          path: |
-            grass/latex
-          retention-days: 3
-
-      - name: Build core
-        run: |
-          cd grass
-          export INSTALL_PREFIX="$HOME/install"
           make
           make install