Add workflow for releasing sparkctl binary

Signed-off-by: Yi Chen <github@chenyicn.net>

.github/workflows/release.yaml

@@ -65,12 +65,44 @@ jobs:
             echo "Tag '${VERSION}' does not exist."
           fi
 
-  build_images:
+  release_sparkctl:
     needs:
       - check-release
 
     runs-on: ubuntu-latest
 
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
+      - name: Read version from VERSION file
+        run: |
+          VERSION=$(cat VERSION)
+          echo "VERSION=${VERSION}" >> $GITHUB_ENV
+
+      - name: Build sparkctl binary
+        run: |
+          for OS in linux darwin; do
+            for ARCH in amd64 arm64; do
+              GOOS=${OS} GOARCH=${ARCH} make build-sparkctl
+              tar -czvf sparkctl-${VERSION}-${OS}-${ARCH}.tgz bin/sparkctl
+            done
+          done
+
+      - name: Upload sparkctl binary
+        uses: actions/upload-artifact@v4
+        with:
+          name: sparkctl-*.tgz
+          path: /tmp/artifacts
+          if-no-files-found: error
+          retention-days: 1
+
+  build_images:
+    needs:
+      - release_sparkctl
+
+    runs-on: ubuntu-latest
+
     strategy:
       fail-fast: false
       matrix:
@@ -90,10 +122,6 @@ jobs:
       - name: Read version from VERSION file
         run: |
           VERSION=$(cat VERSION)
-          if [[ ! ${VERSION} =~ ${{ env.SEMVER_PATTERN }} ]]; then
-              echo "Version '${VERSION}' does not match semver pattern."
-              exit 1
-          fi
           echo "VERSION=${VERSION}" >> $GITHUB_ENV
 
       - name: Docker meta
@@ -249,6 +277,11 @@ jobs:
           for chart in $(ls charts); do
             helm package charts/${chart}
           done
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: /tmp/artifacts
+          pattern: sparkctl-*.tgz
 
       - name: Release
         id: release