[TASK] Update typo3/cms-styleguide

Brings a set of new adaptions to new core functionality.
Uses new core feature 'auto-create db fields' to reduce
ext_tables.sql.

composer require typo3/cms-styleguide ^9.1

Change-Id: I386eec9da50bd3ce7eb5ebb9af8957d3b1c8d9ac
Resolves: #85180
Releases: master
Reviewed-on: https://review.typo3.org/57144
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>

composer.json

@@ -56,14 +56,14 @@
 		"typo3/class-alias-loader": "^1.0",
 		"typo3/cms-cli": "^2.0",
 		"typo3/cms-composer-installers": "^2.0",
+		"typo3/cms-styleguide": "^9.1",
 		"typo3fluid/fluid": "^2.4"
 	},
 	"require-dev": {
 		"codeception/codeception": "^2.3",
 		"enm1989/chromedriver": "~2.30",
 		"fiunchinho/phpunit-randomizer": "^4.0",
 		"friendsofphp/php-cs-fixer": "^2.0",
-		"typo3/cms-styleguide": "~9.0.1",
 		"typo3/testing-framework": "^3.2"
 	},
 	"suggest": {