Bump prometheus_exporter from 0.4.5 to 0.5.1

[dependabot-preview]

Bumps prometheus_exporter from 0.4.5 to 0.5.1.

Release notes

Sourced from prometheus_exporter's releases.

v0.4.13

• Includes fixes for memory leaks in puma and unicorn collectors

Changelog

Sourced from prometheus_exporter's changelog.

0.5.1 - 25-02-2019

• FEATURE: Allow configuring the default client's host and port via environment variables

0.5.0 - 14-02-2019

• Breaking change: listen only to localhost by default to prevent unintended insecure configuration
• FIX: Avoid calling hostname aggressively, instead cache it on the exporter instance

0.4.17 - 13-01-2019

• FEATURE: add support for to_h on all metrics which can be used to query existing key/values

0.4.16 - 04-11-2019

• FEATURE: Support #reset! on all metric types to reset a metric to default

0.4.15 - 04-11-2019

• FEATURE: Improve delayed job collector, add pending counts
• FEATURE: New ActiveRecord collector (documented in readme)
• FEATURE: Allow passing in histogram and summary options
• FEATURE: Allow custom labels for unicorn collector

0.4.14 - 10-09-2019

• FEATURE: allow finding metrics by name RemoteMetric #find_registered_metric
• FIX: guard socket closing

0.4.13 - 09-07-2019

• Fix: Memory leak in unicorn and puma collectors

0.4.12 - 30-05-2019

• Fix: unicorn collector reporting incorrect number of unicorn workers

0.4.11 - 15-05-2019

• Fix: Handle stopping nil worker_threads in Client
• Dev: add frozen string literals

0.4.10 - 29-04-2019

• Fix: Custom label support for puma collector
• Fix: Raindrops socket collector not working correctly

0.4.9 - 11-04-2019

• Fix: Gem was not working correctly in Ruby 2.4 and below due to a syntax error

... (truncated)

Commits

• 12c7686 version bump
• ad161ef FEATURE: Allow configuring the default client's host and port via environment...
• 45ff653 FIX: avoid shelling to get hostname
• f83b4f4 FEATURE: add option for binding exporter to ip (#103)
• 4e143c8 FEATURE: Adding Shoryuken metrics (#104)
• c433c81 DOCS: fix unicorn example (#102)
• 953bcd1 Bump version
• 7d295e0 FEATURE: Support #to_h on all metric types to fetch label value set for a met...
• b8fc683 FEATURE: support reset! on all metric types
• cacbb52 version bump and change log
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #707.