Update drush/drush from 9.6.2 to 9.7.0

[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.

Here is a list of changes between the version you use, and the version this pull request updates to:

• ed1314a8 Prep for 9.7.0
• 24dbb491 Reduce the useless verbosity of batch update output (#3372) (#4090)
• 4f53cbc7 Fix misleading usage examples for config:set and config:delete commands (#4085)
• a8b59fc8 Fixed usage docs for user-add-role. (#4088)
• f507667b Document how to show current site alias in Zsh prompt (#4086)
• d9464534 Remove latest unstable chiclet. Its not helpful.
• ca1d5565 Remove mentions of Shippable. (#4079)
• 37a08708 Add mysql service to Travis config. (#4078)
• caa4c963 Fix link in docs.
• ad613152 More docs about dynamic users in site.yml files.
• d6ca8043 Fix #4055. Sort inside namespaces in list command. (#4057)
• a61a5f8a Print class name in drush_op()
• f63a79ac Update dependencies. (#4051)
• dac5a09a UNISH_NO_TIMEOUTS is unused since we moved to CLITrait. (#4047)
• 21494be3 Add jsonapi command (#4045)
• 2def3015 Fixes #4034: Ensure that status code is nonzero on invalid shutdown (#4037)
• b4a8d3a8 Add webflo/drupal-core-require-dev (#4041)
• dda39937 Fix TTY detection for runserver command. (#4033)
• 24027b37 Add vagrant transport to Drush. (#4036)
• 1472ae38 Back to dev.

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