Observability for all the components

[JorTurFer]

We have to implement and document observability metrics for all the components:

• Operator
• Interceptor Proxy - OTEL Instrumentation #910
• External Scaler
• Standardize traffic metrics across traffic sources #354
• OTEL Env vars don't respect spec #1031

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This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 7 days if no further activity occurs. Thank you for your contributions.

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This issue has been automatically closed due to inactivity.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 7 days if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically closed due to inactivity.