fixup! feat(ci): add lychee broken link test

Signed-off-by: skjnldsv <skjnldsv@protonmail.com>

Author: skjnldsv

.github/workflows/sphinxbuild.yml

@@ -233,15 +233,15 @@ jobs:
     - name: Add various redirects for go.php and user_manual english version
       run: |
         # Fetch source branches so git checkout origin/... works from the gh-pages checkout
-        git fetch origin ${{ github.event.repository.default_branch }} ${{ github.ref_name }}
+        git fetch origin ${{ github.event.repository.default_branch }}
 
         # Generate go.php redirect from main branch
         git checkout origin/${{ github.event.repository.default_branch }} -- go.php/index.html
         mkdir -p server/${{ steps.branch.outputs.branch_name }}/go.php
         mv go.php/index.html server/${{ steps.branch.outputs.branch_name }}/go.php/index.html
 
         # Generate user_manual english redirect
-        git checkout origin/${{ github.ref_name }} -- user_manual/index.html
+        git checkout HEAD -- user_manual/index.html
         mkdir -p server/${{ steps.branch.outputs.branch_name }}/user_manual
         mv user_manual/index.html server/${{ steps.branch.outputs.branch_name }}/user_manual/index.html