feat: add tracing

[sebastiendan]

Description

This PR introduces OpenTelemetry tracing to the Executor Service by leveraging auto-instrumentation (http, express, and nestjs).

Fixes TOO-274

Additions and Changes

New feature (non-breaking change which adds functionality)

• New tracing.ts file setting up OpenTelemetry tracing

PR Checklist:

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added or updated tests that comprehensively prove my change is effective or that my feature works