setup spin for running spin build/registry push

Signed-off-by: Rajat Jindal <[email protected]>

Author: rajatjindal

.github/workflows/ci.yaml

@@ -44,6 +44,10 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/download-artifact@v4
       - uses: azure/setup-kubectl@v4
+      - uses: fermyon/actions/spin/setup@v1
+        with:
+          version: "v2.4.2"
+
       - name: Setup build env
         run: |
           ./scripts/setup-linux.sh