add qemu setup to serverless vuln scan workflow (#589)

Author: duncanpharvey

.github/workflows/serverless-vuln-scan.yml

@@ -101,6 +101,13 @@ jobs:
           repository: DataDog/datadog-lambda-extension
           path: go/src/github.com/DataDog/datadog-lambda-extension
 
+      - name: Set up QEMU
+        id: qemu
+        uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3.6.0
+        with:
+          image: tonistiigi/binfmt:qemu-v9.2.2-52 #v3.6.0 latest
+          platforms: amd64,arm64
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@d70bba72b1f3fd22344832f00baa16ece964efeb # v3.3.0