Phoenix 1.7 upgrade

[pkrawat1]

Why?

This change addresses the need by:

[delivers #pivotal_story_id]

Checklist

• I have read CONTRIBUTING.md.
• My code follows the style guidelines of this project.
• I have commented my code, particularly in hard-to-understand areas.
• My code does not generate any (new) credo and compile-time warnings.
• I have updated the documentation wherever necessary.
• I have added tests to cover my changes.