Add cfn-lint

Author: tianchu

.github/workflows/cfn-lint.yml

@@ -0,0 +1,16 @@
+name: cfn-lint
+
+on: [pull_request]
+
+jobs:
+  cfn-lint:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: cfn-lint
+      uses: docker://scottbrenner/cfn-lint-action:latest
+      with:
+        args: "aws/logs_monitoring/template.yaml"

.github/workflows/lambdachecks.yml

@@ -1,6 +1,6 @@
 name: Lambda checks
 
-on: [push]
+on: [pull_request]
 
 jobs:
   build: