[SECURITY] Update phpunit/phpunit from 7.5.1 to 7.5.20

[violinist-bot]

If you have a high test coverage index, and your tests for this pull request are passing, it should be both safe and recommended to merge this update.

Updated packages

Some times an update also needs new or updated dependencies to be installed. Even if this branch is for updating one dependency, it might contain other installs or updates. All of the updates in this branch can be found here:

• doctrine/instantiator: 1.5.0 (updated from 1.1.0)
• myclabs/deep-copy: 1.13.4 (updated from 1.8.1)
• phpdocumentor/reflection-common: 2.2.0 (updated from 1.0.1)
• phpdocumentor/reflection-docblock: 5.3.0 (updated from 4.3.0)
• phpdocumentor/type-resolver: 1.6.1 (updated from 0.4.0)
• phpspec/prophecy: v1.21.0 (updated from 1.8.0)
• phpunit/php-file-iterator: 2.0.6 (updated from 2.0.2)
• phpunit/php-timer: 2.1.4 (updated from 2.0.0)
• phpunit/php-token-stream: 3.1.3 (updated from 3.0.1)
• phpunit/phpunit: 7.5.20 (updated from 7.5.1)
• sebastian/code-unit-reverse-lookup: 1.0.3 (updated from 1.0.1)
• sebastian/comparator: 3.0.7 (updated from 3.0.2)
• sebastian/diff: 3.0.6 (updated from 3.0.1)
• sebastian/environment: 4.2.5 (updated from 4.0.1)
• sebastian/exporter: 3.1.8 (updated from 3.1.0)
• sebastian/object-enumerator: 3.0.5 (updated from 3.0.3)
• sebastian/object-reflector: 1.1.3 (updated from 1.1.1)
• sebastian/recursion-context: 3.0.3 (updated from 3.0.0)
• sebastian/resource-operations: 2.0.3 (updated from 2.0.1)
• theseer/tokenizer: 1.3.1 (updated from 1.1.0)
• webmozart/assert: 1.12.1 (updated from 1.3.0)

Working with this branch

If you find you need to update the codebase to be able to merge this branch (for example update some tests or rebuild some assets), please note that violinist will force push to this branch to keep it up to date. This means you should not work on this branch directly, since you might lose your work. Read more about branches created by violinist.io here.

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[codecov-commenter]

Codecov Report

Merging #37 into master will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff             @@
##              master       #37   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity        42        42           
===========================================
  Files              3         3           
  Lines             96        96           
===========================================
  Hits              96        96           

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