Downgrade artifact actions to v3 for Gitea compatibility

.gitea/workflows/build.yaml

@@ -60,7 +60,7 @@ jobs:
           docker save ${{ env.IMAGE_NAME }}:test -o /tmp/images/image.tar
 
       - name: Upload image artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
           name: docker-image
           path: /tmp/images/image.tar
@@ -75,7 +75,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Download image artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v3
         with:
           name: docker-image
           path: /tmp/images
@@ -98,7 +98,7 @@ jobs:
     needs: build
     steps:
       - name: Download image artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v3
         with:
           name: docker-image
           path: /tmp/images
@@ -141,7 +141,7 @@ jobs:
       full_image: ${{ steps.version.outputs.FULL_IMAGE }}
     steps:
       - name: Download image artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v3
         with:
           name: docker-image
           path: /tmp/images