ci: add docs dir creation

Please work

Signed-off-by: Slendi <slendi@socopon.com>

.github/workflows/docs.yml

@@ -11,6 +11,8 @@ jobs:
     permissions:
       contents: write
     steps:
+      - name: Create docs directory
+        run: mkdir -p build/docs
       - uses: DenverCoder1/doxygen-github-pages-action@v2.0.0
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}