fix: gzip artifact to reduce upload size (629MB -> ~150MB)

.gitea/workflows/docker-build.yaml

@@ -24,12 +24,12 @@ jobs:
       - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
       - name: Build image
         run: docker build -t ci-image:${{ github.sha }} .
-      - name: Save image
-        run: docker save ci-image:${{ github.sha }} -o image.tar
+      - name: Save and compress image
+        run: docker save ci-image:${{ github.sha }} | gzip -1 > image.tar.gz
       - uses: ChristopherHX/gitea-upload-artifact@62ac910c5d3dfa85c7cb2df15afe2e342b2407c2
         with:
           name: docker-image
-          path: image.tar
+          path: image.tar.gz
 
   test:
     runs-on: ubuntu-latest
@@ -39,8 +39,8 @@ jobs:
       - uses: ChristopherHX/gitea-download-artifact@75635f32b4c1c41c4b3d64e8f85210112ed4c9c7
         with:
           name: docker-image
-      - name: Load image
-        run: docker load < image.tar
+      - name: Decompress and load image
+        run: gunzip image.tar.gz && docker load -i image.tar
       - name: Run tests
         run: bash tests/test.sh ci-image:${{ github.sha }}
 
@@ -53,8 +53,8 @@ jobs:
       - uses: ChristopherHX/gitea-download-artifact@75635f32b4c1c41c4b3d64e8f85210112ed4c9c7
         with:
           name: docker-image
-      - name: Load image
-        run: docker load < image.tar
+      - name: Decompress and load image
+        run: gunzip image.tar.gz && docker load -i image.tar
       - uses: docker/login-action@650006c6eb7dba73a995cc03b0b2d7f5ca915bee
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
@@ -62,4 +62,4 @@ jobs:
       - name: Tag and push
         run: |
           docker tag ci-image:${{ github.sha }} jcabillot/opencode-openchamber:latest
-          docker push jcabillot/opencode-openchamber:latest
+          docker push jcabillot/opencode-openchamber:latest