Update drush/drush from 9.3.0 to 9.4.0

[violinist-bot]

If you have a decent test suite, and your tests pass, it should be both safe and smart to merge this update.

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

• 9d46a2a6 Remove usage of SebastianBergmann\Version. Was causing an error and providing little benefit. (#3671)
• d0fbc1eb Prep for 9.4.0
• 44f3d5e7 Update using-drush-configuration.md (#3668)
• f5067afb Fixes #3595: Remove non-default options in REPL commands, Fix help command grouping (#3667)
• feb04069 Update deprecated code _convert_csv_to_array().
• b9819fa5 Use colon in command names in tests.
• 80c2fc3d Advertise generate field command.
• 9e82a30e Test for si --existing-config (#3665)
• f646fb7a Fix #3664. Make config:set --value_format=yaml work. (#3666)
• 55f72642 Don't spew to stdout when in verbose mode during early bootstrap queries.
• 3c6ae417 Remove validation of --existing-config.Its a bool, not a path.
• 8f3ffed0 Allow multipart aliases with drush sa, e.g. @location.site.env or @location.site, in addition to just @location or @site. (#3660)
• 562e60e6 Validate any provided config dirs in si command (#3659)
• b3021201 Do not pass local paths to remote hosts (#3658)
• 1b7a9b3b Automatically select correct profile when using --existing-config (#3657)
• 19de1b8b Fix #3634. updatedb with long-running updates can end in "MySQL went away" error (#3655)
• e3c4e128 Further option description tweaking.
• 3ca9a136 Improve option descriptions for si. Fix CS.
• 5ab6555e Use composer/semver to determine Drupal 8.5-.
• 5b270474 fix #3624: Change usage of '--config-dir' site-install option. (#3625)
• 1844496e Update dependencies to site-alias ^1.1.1.
• 18c7f642 Merge branch 'master' of github.com:drush-ops/drush
• 286d7513 Fixes #3651: correct typos in topic file paths.
• f9b392d6 Fixes #3274: Allow un-found aliases on the commandline to be passed through to the site-local Drush. (#3650)
• 0fd56c7c Add an 'ssh.tty' option to site aliased. (#3648)
• e30df96a Fix #3641. Move path doc to non-optional step.
• 454a174d Isolation via test scenarios (#3644)
• f98f53be Use consolidation/config useMergeStrategyForKeys (#3642)
• 22606d1a Fix #3635. More verbose output when an exception happens during command execution. (#3640)
• 564cae90 Set maintenance mode to update when running updates (#3606)
• a719fa45 Adding drush cache directory to core:status (#3623)
• 3630f991 Update issue templates for documentation requests
• 500f5927 Fix my fix
• b56132c3 Remove markdown in "about", as it is not supported
• 127ed70e Update issue templates (#3620)
• 8f18c69a Issue #3596: Canonicalize directory. (#3600)
• 947591fa Improve site alias example documentation. (#3612)
• de44f931 Site alias location filters (#3602)
• 7cee94ad Enable configurability of the Drush cache directory. (#3597)
• 05ba5613 Update docs for refeactor to https://github.com/consolidation/site-alias
• 2c9a38d1 Fix si breaking with uri and default directory (#3591)
• bd7b950c Factor SiteAlias classes out into consolidation/site-alias project. (#3588)
• 226aa64e Fix undefined index error (#3590)
• 2342ecfb Fixes #3510: Fix up regular expressions for remote site specifications. (#3583)
• 6f2aef74 Support ansi options. (#3579)
• 0dd2f16e Support var-dumper 4.x (#3578)
• 9a707dbd Mark drush_backend_invoke_concurrent as deprecated (#3573)
• ff678b36 #3569, Drush 9 aliases path is wrong when using symlink (#3570)
• 995ea4b7 Fix link.
• a404f20c phpcs.
• 5dc913bd Merge branch 'master' into master
• 3fe8e364 Fix expectation.
• cdd239a6 Merge branch 'master' into master
• 01757cbb Ensuring only one update is suggested per package.
• caeedc11 Clarify log message.
• 5cb0ead3 Fix #3566 - Improve docs for authoring global commandfiles.
• 849cea53 Back to dev.
• 649e3962 Make tests pass.
• 91b26477 Adding testing for constraint parsing.
• a1c2857f Fixing pm:security to properly identify security updates.

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