Update actions/deploy-pages digest to 368f825 (#16)

Co-authored-by: microbit-renovate[bot] <318704470+microbit-renovate[bot]@users.noreply.github.com>

Author: microbit-renovate[bot]

.github/workflows/build-docs.yml

@@ -41,4 +41,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@cd2ce8fcbc39b97be8ca5fce6e763baed58fa128 # v5
+        uses: actions/deploy-pages@368f82528645a54fb793d4d04e342629a3f51346 # v5