Update dependency prom-client to v14 - autoclosed

This MR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
prom-client	^13.1.0 -> ^14.0.0

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Release Notes

siimon/prom-client (prom-client)

v14.2.0

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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

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Changed

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

v14.1.0

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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

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Changed

• changed: typedef for pushgateway to reflect js implementation.

v14.0.0

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Breaking

• changed: linearBuckets does not propagate rounding errors anymore.

  Fewer bucket bounds will be affected by rounding errors. Histogram bucket labels may change. 6f1f3b2

• changed: The push gateway methods pushAdd(), push() and delete() now return Promises instead of accepting a callback:

  // Old:
  gateway.pushAdd({ jobName: 'test' }, (err, resp, body) => {});
  // New:
  gateway
    .pushAdd({ jobName: 'test' })
    .then(({ resp, body }) => {})
    .catch(err => {});
  // or
  const { resp, body } = await gateway.pushAdd({ jobName: 'test' });

  f177b1f

• changed: The default nodejs_eventloop_lag_* metrics are now reset every time they are observed. This prevents these metrics from "stabilizing" over a long period of time and becoming insensitive to small changes. For more info, see #​370. 0f444cd

Changed

• Add missing await/thens to examples. 074f339
• Add missing type declaration for client.contentType. 3b66641
• Modernize some label processing code. c9bf1d8

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