build: change version of upload-artifact

.gitea/workflows/deploy.yml

@@ -9,7 +9,7 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
-    
+
     outputs:
       branch-type: ${{ steps.branch-info.outputs.branch-type }}
 
@@ -60,7 +60,7 @@ jobs:
           pelican ./content/ -o ./output -s publishconf.py --relative-urls
 
       - name: Upload build artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
           name: site-build
           path: output/
@@ -69,7 +69,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     needs: build
-    
+
     steps:
       - name: Download build artifact
         uses: actions/download-artifact@v4