fix(logger): pino pagerduty transport

[Reinis-FRP]

Motivation

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What existing problem does the pull request solve?
It may be sufficient to just link to an issue, but please explain if more details are needed.

Summary

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Details

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Testing

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• Ran end-to-end test, running the code as in production
• New unit tests created
• Existing tests adequate, no new tests required
• All existing tests pass
• Untested

Issue(s)

Fixes #XXXX