[ez] Add aws/lambda folder to release lambda action trigger (#6826)

I saw that I still had to do a custom release, even though it was from
the main branch, for my lambda

Author: clee2000

.github/workflows/lambda-release-tag-runners.yml

@@ -7,6 +7,7 @@ on:
       - main
     paths:
       - 'terraform-aws-github-runner/**'
+      - 'aws/lambda/**'
   pull_request: # Generate tag when PR modifies this workflow file
     paths:
       - '.github/workflows/lambda-release-tag-runners.yml'