fix: set default working directory for docs deployment workflow

Author: pascalinthecloud

.github/workflows/docs_astro_deploy.yaml

@@ -28,15 +28,17 @@ env:
   BUILD_PATH: "docs" # default value when not using subfolders
   # BUILD_PATH: subfolder
 
+defaults:
+  run:
+    working-directory: docs
+
 jobs:
   build:
     name: Build
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-        with:
-          sparse-checkout: docs
       - name: Detect package manager
         id: detect-package-manager
         run: |