change pages upload path to nonroot

.gitea/workflows/build.yaml

@@ -32,7 +32,7 @@ jobs:
       - name: upload to pages
         run: |
           curl -X PUT --fail \
-            https://pages.ct.cozytren.ch \
+            https://pages.ct.cozytren.ch/testrepo \
             -T ./presentation.zip \
             -H "Content-Type: application/zip" \
             -H "Authorization: Pages ${{ secrets.GIT_PAGES_TOKEN }}"