telemetry: enable metrics and update OTLP endpoint to staging environment

[gtregoat]

Description

Enable telemetry to help debug issues, should users chose to accept to share anonymous metrics about function successes and failures.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

• Unit test
• With our infrastructure

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[SaboniAmine]

Welcome back telemetry!