Add pull_request trigger for release branches in API Integration Test…

[luqmanbello]

Pull Request the OpenBB Platform

Description

• Summary of the change/ bug fix.
• Link # issue, if applicable.
• Screenshot of the feature or the bug before/after fix, if applicable.
• Relevant motivation and context.
• List any dependencies that are required for this change.

How has this been tested?

• Please describe the tests that you ran to verify your changes.

• Please provide instructions so we can reproduce.

• Please also list any relevant details for your test configuration.

• Ensure all unit and integration tests pass.

• If you modified/added command(s):

  • Ensure the command(s) execute with the expected output.
    • API.
    • Python Interface.
  • If applicable, please add new tests for the command (see CONTRIBUTING.md to leverage semi-automated testing).

• If a new provider was introduced or a new fetcher was added to an existing provider:

  • Ensure the existing tests pass.
  • Ensure the new provider and/or fetcher is stable and usable.
  • If applicable, please add new tests for the provider and/or fetcher (see CONTRIBUTING.md to leverage semi-automated testing).

• If a new provider or extension was added:

  • Update the list of Extensions.
  • Update the list of Providers.
  • If it's a community extension or provider, update the integration tests GitHub Action workflow.

Checklist

• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have adhered to the GitFlow naming convention and my branch name is in the format of feature/feature-name or hotfix/hotfix-name.
• I ensure that I am following the CONTRIBUTING guidelines.
  • (If applicable) I have updated tests following these guidelines.

[luqmanbello]

@IgorWounds This is the PR for the platform integration test