Use firecracker runner for release workflow (#24)

Signed-off-by: Tamal Saha <tamal@appscode.com>

Author: tamalsaha

.github/workflows/release.yml

@@ -13,7 +13,7 @@ concurrency:
 jobs:
   build:
     name: Build
-    runs-on: ubuntu-24.04
+    runs-on: firecracker
     steps:
       - uses: actions/checkout@v1