chore(instrumentation): simplify type checking

[jamietanna]

Changes

As per suggestion in #39596 (comment)

Context

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• This closes an existing Issue: #
• This doesn't close an Issue, but I accept the risk that this PR may be closed if maintainers disagree with its opening or implementation

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Did you use AI tools to create any part of this pull request?

Please select one option and, if yes, briefly describe how AI was used (e.g., code, tests, docs) and which tool(s) you used.

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Documentation (please check one with an [x])

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The public repository:

[secustor]

Needs coverage

[viceice]

https://app.codecov.io/github/renovatebot/renovate/pull/39672#b1e3d09cb5ceb83333aa2a922ffc4442-R31

[viceice]

conflicted