Replace otel-trace with otel-context-aware-slog in integration test

[mhofman]

What is the Problem Being Solved?

We don't currently use any of the otel tracing reporting (both because it's missing capabilities and because we no longer have a good frontend for it), and I believe we stopped using it in instagoric. However we've introduced a context aware slog that we started using.

Description of the Design

Replace otel-trace with otel-context-aware-slog in the integration test

Consider removing otel-and-flight-recorder.js as well.

Security Considerations

None

Scaling Considerations

None

Test Plan

None

Upgrade Considerations

Slog senders are part of chain software

[usmanmani1122]

@mhofman I don't see otel-and-flight-recorder.js used anywhere. Should we remove the slogger all together?