chore(deps): update coverage requirement from ~=5.0 to ~=5.1

[dependabot-preview]

Updates the requirements on coverage to permit the latest version.

Changelog

Sourced from coverage's changelog.

Version 5.1 --- 2020-04-12

• The JSON report now includes counts of covered and missing branches. Thanks, Salvatore Zagaria.
• On Python 3.8, try-finally-return reported wrong branch coverage with decorated async functions (issue 964). This is now fixed. Thanks, Kjell Braden.
• The ~coverage.Coverage.get_option and ~coverage.Coverage.set_option methods can now manipulate the [paths] configuration setting. Thanks to Bernát Gábor for the fix for issue 967.

Version 5.0.4 --- 2020-03-16

• If using the [run] relative_files setting, the XML report will use relative files in the <source> elements indicating the location of source code. Closes issue 948.
• The textual summary report could report missing lines with negative line numbers on PyPy3 7.1 (issue 943). This is now fixed.
• Windows wheels for Python 3.8 were incorrectly built, but are now fixed. (issue 949)
• Updated Python 3.9 support to 3.9a4.
• HTML reports couldn't be sorted if localStorage wasn't available. This is now fixed: sorting works even though the sorting setting isn't retained. (issue 944 and pull request 945). Thanks, Abdeali Kothari.

Version 5.0.3 --- 2020-01-12

• A performance improvement in 5.0.2 didn't work for test suites that changed directory before combining data, causing "Couldn't use data file: no such table: meta" errors (issue 916). This is now fixed.
• Coverage could fail to run your program with some form of "ModuleNotFound" or "ImportError" trying to import from the current directory. This would happen if coverage had been packaged into a zip file (for example, on Windows), or was found indirectly (for example, by pyenv-virtualenv). A number of different scenarios were described in issue 862 which is now fixed. Huge thanks to Agbonze O. Jeremiah for reporting it, and Alexander Waters and George-Cristian Bîrzan for protracted debugging sessions.
• Added the "premain" debug option.
• Added SQLite compile-time options to the "debug sys" output.

Version 5.0.2 --- 2020-01-05

• Programs that used multiprocessing and changed directories would fail under coverage. This is now fixed (issue 890). A side effect is that debug information about the config files read now shows absolute paths to the files.
• When running programs as modules (coverage run -m) with --source, some measured modules were imported before coverage starts. This resulted in unwanted warnings ("Already imported a file that will be measured") and a reduction in coverage totals (issue 909). This is now fixed.
• If no data was collected, an exception about "No data to report" could happen instead of a 0% report being created (issue 884). This is now fixed.
• The handling of source files with non-encodable file names has changed. Previously, if a file name could not be encoded as UTF-8, an error occurred, as described in issue 891. Now, those files will not be measured, since their data would not be recordable.
• A new warning ("dynamic-conflict") is issued if two mechanisms are trying to change the dynamic context. Closes issue 901.
• coverage run --debug=sys would fail with an AttributeError. This is now fixed (issue 907).

Version 5.0.1 --- 2019-12-22

• If a 4.x data file is the cause of a "file is not a database" error, then use a more specific error message, "Looks like a coverage 4.x data file, are you mixing versions of coverage?" Helps diagnose the problems described in issue 886.
• Measurement contexts and relative file names didn't work together, as reported in issue 899 and issue 900. This is now fixed, thanks to David Szotten.
• When using coverage run --concurrency=multiprocessing, all data files should be named with parallel-ready suffixes. 5.0 mistakenly named the main process' file with no suffix when using --append. This is now fixed, closing issue 880.
• Fixed a problem on Windows when the current directory is changed to a different drive (issue 895). Thanks, Olivier Grisel.
• Updated Python 3.9 support to 3.9a2.

Version 5.0 --- 2019-12-14

Nothing new beyond 5.0b2.

Version 5.0b2 --- 2019-12-08

... (truncated)

Commits

• b854e61 Remove a no-longer needed wheel pin
• dd11976 Prep for v5.1
• b79005b New JSON info should be reported on individual files also.
• b1194fb Merge pull request #966 from SZVector/json_dump_all_attributes
• 42344f3 Beef up the test for get_option(paths)
• fd43e35 Finish up #967. Thanks, Bernát Gábor
• 97997d2 Merge pull request #969 from gaborbernat/967
• f5eb5f2 Extending jsonreport.py to also include all branch attributes
• 1720459 One clarification
• b890a3d Make the questions heading so they can be linked to
• Additional commits viewable in compare view

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[codecov]

Codecov Report

Merging #6920 into development will not change coverage by %.
The diff coverage is n/a.

@@             Coverage Diff              @@
##           development    #6920   +/-   ##
============================================
  Coverage        66.40%   66.40%           
============================================
  Files              313      313           
  Lines            15359    15359           
============================================
  Hits             10199    10199           
  Misses            5160     5160           

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