feat: make doxygen in github

.github/workflows/linux-lcg.yml

+name: linux-lcg
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  build-lcg-docs:
+    runs-on: ubuntu-20.04
+    strategy:
+      fail-fast: false
+      matrix:
+        LCG: ["LCG_101/x86_64-ubuntu2004-gcc9-opt"]
+    steps:
+    - uses: actions/checkout@v3
+    - uses: cvmfs-contrib/github-action-cvmfs@v2
+      with:
+        cvmfs_repositories: 'sft.cern.ch,geant4.cern.ch'
+    - uses: aidasoft/run-lcg-view@v1
+      with:
+        release-platform: ${{ matrix.LCG }}
+        run: |
+          PREFIX=${PWD}/install
+          cmake -B build -S . -DCMAKE_INSTALL_PREFIX=${PREFIX}
+          cmake --build build -- install
+          cmake --build build -- docs
+    - uses: actions/upload-artifact@v3
+      with:
+        name: build-lcg-docs
+        path: build/docs/html/
+        if-no-files-found: error