Update mediawiki/mediawiki-codesniffer requirement from 42.0.0 to 43.…

…0.0 (#76)

* Update mediawiki/mediawiki-codesniffer requirement from 42.0.0 to 43.0.0

Updates the requirements on [mediawiki/mediawiki-codesniffer](https://github.com/wikimedia/mediawiki-tools-codesniffer) to permit the latest version.
- [Changelog](https://github.com/wikimedia/mediawiki-tools-codesniffer/blob/master/HISTORY.md)
- [Commits](wikimedia/mediawiki-tools-codesniffer@v42.0.0...v43.0.0)

---
updated-dependencies:
- dependency-name: mediawiki/mediawiki-codesniffer
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

* Add to allow-plugins

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: CosmicAlpha <[email protected]>

composer.json

@@ -23,7 +23,7 @@
 		"composer/installers": ">=1.0.1"
 	},
 	"require-dev": {
-		"mediawiki/mediawiki-codesniffer": "42.0.0",
+		"mediawiki/mediawiki-codesniffer": "43.0.0",
 		"mediawiki/mediawiki-phan-config": "0.14.0",
 		"mediawiki/minus-x": "1.1.1",
 		"php-parallel-lint/php-console-highlighter": "1.0.0",
@@ -46,7 +46,8 @@
 		"prepend-autoloader": false,
 		"optimize-autoloader": true,
 		"allow-plugins": {
-			"composer/installers": true
+			"composer/installers": true,
+			"dealerdirect/phpcodesniffer-composer-installer": true
 		}
 	}
 }