fix(deps): update dependency prom-client to v12

[renovate-bot]

This PR contains the following updates:

Package	Type	Update	Change
prom-client	dependencies	major	^11.5.3 -> ^12.0.0

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Release Notes

siimon/prom-client

v12.0.0

Compare Source

Breaking

• Dropped support for end-of-life Node.js versions 6.x and 8.x
• Dropped the previously deprecated support for positional parameters in
  constructors, only the config object forms remain.
• Default metrics are collected on scrape of metrics endpoint, not on an
  interval. The timeout option to collectDefaultMetrics(conf) is no longer
  supported or needed, and the function no longer returns a Timeout object.

Changed

• chore: remove ignored package-lock.json
• fix: process_max_fds is process limit, not OS (#​314)
• Changed Metric labelNames & labelValues in TypeScript declaration to a generic type T extends string, instead of string
• Lazy-load Node.js Cluster module to fix Passenger support (#​293)
• fix: avoid mutation bug in registry.getMetricsAsJSON()
• fix: improve performance of registry.getMetrics*
• End function of histogram startTimer, when invoked returns the number of seconds
• chore: reindent package.json
• chore: correct var name in processStartTime
• chore: add test for process_start_time_seconds
• chore: spelling corrections in README

Added

• feat: implement GC metrics collection without native(C++) modules.
• feat: implement advanced event loop monitoring

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[dyladan]

Closing in favor of #1139

[forking-renovate]

Renovate Ignore Notification

As this PR has been closed unmerged, Renovate will ignore this upgrade and you will not receive PRs for any future 12.x releases. However, if you upgrade to 12.x manually then Renovate will then reenable updates for minor and patch updates automatically.

If this PR was closed by mistake or you changed your mind, you can simply rename this PR and you will soon get a fresh replacement PR opened.