Adding CI Workflow to Run Postman Tests with Newman (#223)

* feat: Adding Newman ci pipeline

* fix: changing push branch for tests

* fix: changing execution API script for more efficiency

* fix: Removing on push config for use only in manual trigger and PRs

* fix: adding test validation if the test fail

* fix: Changing Workflows name

* test: just testing if the newman pipeline fails when a test fail

* test: the report should be uploaded even if the test fail

* fix: fixing postman collection to the correct validation