add gettid flag to null model yaml and pull_request trigger to create_test_conda_build

[rem1776]

Describe your changes

fix the ci failure during the push test (create_test_conda_build) and modifies that workflow to also run on pull_requests

Issue ticket number and link (if applicable)

Checklist before requesting a review

• I ran my code
• I tried to make my code readable
• I tried to comment my code
• I wrote a new test, if applicable
• I wrote new instructions/documentation, if applicable
• I ran pytest and inspected it's output
• I ran pylint and attempted to implement some of it's feedback