use upload-artifact v3

.gitea/workflows/build.yaml

@@ -1,4 +1,4 @@
-run-name: Build artifact for ${{gitea.ref}} by @${{ gitea.actor }}
+run-name: Build artifact for ${{gitea.ref_name}} by @${{ gitea.actor }}
 on:
   push:
     tags:
@@ -36,11 +36,8 @@ jobs:
           hugo \
             --gc \
             --minify 
-      - name: 'Tar files'
-        run: tar -cvf ${{gitea.ref}}.tar -C public/ .
-      
       - name: 'Upload Artifact'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: ${{gitea.ref}}.tar
+          name: ${{gitea.ref_name}}
-          path: ${{gitea.ref}}.tar
+          path: public/