fix: package release as .gz

Author: zeidlitz

.github/workflows/release.yaml

@@ -27,14 +27,14 @@ jobs:
 
       - name: Package artifacts
         run: |
-          TAG=${{ github.ref_name }}
-          tar -czf observer-${{ matrix.goarch }}-$TAG.tar.gz observer-${{ matrix.goarch }}
+          echo "Packaging artifacts for ${{ matrix.goarch }}-{{ github.ref_name }}"
+          gzip -c observer-${{ matrix.goarch }} > observer-${{ matrix.goarch }}-{{ github.ref_name }}.gz
 
       - name: Upload artifacts
         uses: actions/upload-artifact@v4
         with:
           name: observer-${{ matrix.goarch }}
-          path: observer-${{ matrix.goarch }}-${{ github.ref_name }}.tar.gz
+          path: observer-${{ matrix.goarch }}-${{ github.ref_name }}.gz
   release:
     runs-on: ubuntu-latest
     needs: build