Bump prometheus-client from 0.9 to 0.10.0

[dependabot[bot]]

Bumps prometheus-client from 0.9 to 0.10.0.

Release notes

Sourced from prometheus-client's releases.

0.10.0 / 2021-04-02

• [CHANGE] Python 2.6 is no longer supported. #592
• [CHANGE] The prometheus_multiproc_dir environment variable is deprecated in favor of PROMETHEUS_MULTIPROC_DIR. #624
• [FEATURE] Follow redirects when pushing to Pushgateway using passthrough_redirect_handler. #622
• [FEATURE] Metrics support a clear() method to remove all children. #642
• [ENHANCEMENT] Tag support in GraphiteBridge. #618

Commits

• 7bbf86f Release 0.10.0
• f22d38f Multiprocess environment variable in upper case (#624)
• 1a3ba21 Add a clear() method to metric objects to remove all labelsets (#642)
• 5dffc77 Add separate handling of the /favicon.ico path in the default wsgi implementa...
• 5e3674a Implement redirect handler option. (#622)
• ccb8395 Add tags support to GraphiteBridge (#618)
• 83f359b Merge pull request #617 from kfp/patch-1
• 6503ea3 Update README.md
• fdd741c Merge pull request #615 from prometheus/beorn7/maintainers
• 155d5cb Change maintainer from @​brian-brazil to @​csmarchbanks
• Additional commits viewable in compare view

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[codecov[bot]]

Codecov Report

Merging #18 (9ca70cf) into master (ff8d87c) will not change coverage. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master      #18   +/-   ##
=======================================
  Coverage   90.22%   90.22%           
=======================================
  Files          16       16           
  Lines         409      409           
=======================================
  Hits          369      369           
  Misses         40       40           

Impacted Files	Coverage Δ
boxkite/monitoring/encoder.py	92.59% <100.00%> (ø)

[dependabot[bot]]

A newer version of prometheus-client exists, but since this PR has been edited by someone other than Dependabot I haven't updated it. You'll get a PR for the updated version as normal once this PR is merged.