Update dependency prom-client to v14.2.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
prom-client	14.1.1 -> 14.2.0

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Release Notes

siimon/prom-client

### [`v14.2.0`](https://togithub.com/siimon/prom-client/blob/HEAD/CHANGELOG.md#​1420---2023-03-06) [Compare Source](https://togithub.com/siimon/prom-client/compare/v14.1.1...v14.2.0) ##### Changed - Refactor `getMetricAsPrometheusString` method in the `Registry` class to use `Array.prototype.join` instead of loop of string concatenations. - Also use `Array.prototype.map`, and object spread instead of an explicit `for` loop - changed: updated the sample output in `example/default-metrics.js` - `summary` metrics now has a `pruneAgedBuckets` config parameter to remove entries without any new values in the last `maxAgeSeconds`. Default is `false` (old behavior) ##### Added - Add `get` method to type definitions of metric classes

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