Update dependency prom-client to v14

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
prom-client	^13.0.0 -> ^14.0.0

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Release Notes

siimon/prom-client

v14.0.1

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What's Changed

• Update pushgateway type def by @​adilhafeez in https://github.com/siimon/prom-client/pull/469

New Contributors

• @​adilhafeez made their first contribution in https://github.com/siimon/prom-client/pull/469

Full Changelog: siimon/prom-client@v14.0.0...v14.0.1

v14.0.0

Compare Source

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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