Update build.yml

.gitea/workflows/build.yml

@@ -46,6 +46,9 @@ jobs:
           apt-get update
           apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin -y
 
+      - name: Checkout
+        uses: actions/checkout@v4
+
       - name: Download .jar Artifact
         uses: actions/download-artifact@v3
         with: