Update dependency prom-client to v14.2.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
prom-client	14.0.0 -> 14.2.0

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Release Notes

siimon/prom-client (prom-client)

v14.2.0

Compare Source

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

v14.1.1

Compare Source

Changed

• Increase compatibility with external build system such as rollup by making perf_hooks optional in gc.js

v14.1.0

Compare Source

Changed

• types: converted all the generic Metric types to be optional

• The done() functions returned by gauge.startTimer() and
  summary.startTimer() now return the timed duration. Histograms already had
  this behavior.

• types: fixed type for registry.getMetricsAsArray()

• Improve performance of gague.inc() and gauge.dec() by calling hashObject() once.

Added

• The processResources metric was added, which keeps a track of all sorts of
  active resources. It consists of the following gauges:

  • nodejs_active_resources - Number of active resources that are currently
    keeping the event loop alive, grouped by async resource type.
  • nodejs_active_resources_total - Total number of active resources.
    It is supposed to provide the combined result of the processHandles and
    processRequests metrics along with information about any other types of
    async resources that these metrics do not keep a track of (like timers).

• Support gzipped pushgateway requests

v14.0.1

Compare Source

Changed

• changed: typedef for pushgateway to reflect js implementation.

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