Renamed unit test .yml file to .github/workflows/run_unit_tests_on_docker.yml and added rule to run schedule before any PRs are approved for merge

Author: susan-pgedge

.github/workflows/snowflake-docker.yml …b/workflows/run_unit_tests_on_docker.yml.github/workflows/snowflake-docker.yml renamed to .github/workflows/run_unit_tests_on_docker.yml .github/workflows/snowflake-docker.yml renamed to .github/workflows/run_unit_tests_on_docker.yml

@@ -4,6 +4,8 @@ on:
   push:
     branches:
       - main
+  pull_request:
+    
 
 jobs:
   run-scripts: