add checkov to scan terraform

.github/workflows/scan.yml

@@ -0,0 +1,18 @@
+name: Checkov
+
+on: [push]
+
+jobs:
+  Scan:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v3
+      - name: Run Checkov action
+        id: checkov
+        uses: bridgecrewio/checkov-action@v12
+        with:
+          directory: .
+          framework: terraform
+          quiet: true
+          soft_fail: true