[Tests-Only] Pin behat/mink to version 1.7.1

[phil-davis]

Description

New versions of MinkSelenium2Driver and Mink were released overnight. Our Behat acceptance tests vendor-bin/Behat/composer.json automagically sucks in the new changes. And "stuff failed" (see the issue for details).

https://github.com/minkphp/MinkSelenium2Driver/releases/tag/v1.4.0
https://github.com/minkphp/Mink/releases/tag/v1.8.1

MinkSelenium2Driver 1.4.0 is working fine. So we can use that rather than relying on dev-master - good.

But Mink 1.8.0 or 1.8.1 causes the problem. It might be related to minkphp/Mink#705 which changed the way that sessions get started (e.g. to selenium) - I will look at that later. For now, specify Mink 1.7.1 to get things working. (dependencies in other Behat-Mink things were causing later Mink code to get loaded)

Related Issue

• webUI acceptance test Mink-selenium dependencies #37113

How Has This Been Tested?

Local acceptance test run and CI

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Database schema changes (next release will require increase of minor version instead of patch)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests only (no source changes)

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:
• Changelog item, see TEMPLATE

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@1314c83). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master   #37112   +/-   ##
=========================================
  Coverage          ?   64.78%           
  Complexity        ?    19133           
=========================================
  Files             ?     1270           
  Lines             ?    74914           
  Branches          ?     1328           
=========================================
  Hits              ?    48531           
  Misses            ?    25993           
  Partials          ?      390

Flag	Coverage Δ	Complexity Δ
#javascript	54.18% <ø> (?)	0 <ø> (?)
#phpunit	65.96% <ø> (?)	19133 <ø> (?)

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