dev: Update app deployments for improved resiliency

[AAkindele]

Type of PR

• Documentation changes
• Code changes
• Test changes
• CI-CD changes
• GitHub Template changes

PR Checklist

• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.
• My code follows the code style of this project.
• I ran lint checks locally prior to submission.
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Purpose of PR

• increase app replicas from 1 to 2
• add the default deployment update strategy to the yaml for self-documentation
  • this is already the default behavior, so no changes here

Does this introduce a breaking change

• YES
• NO

Validation

• Unit tests updated and ran successfully
• Update documentation or issue referenced above

Issues Closed or Referenced

• References https://github.com/retaildevcrews/wcnp/issues/722