build: Updating ansi-regex to 5.0.1

* https://npmjs.com/advisories/1002401 (CVE-2021-3807)

Additional changes:
* eslint: Added `wikimedia/mediawiki` profile (T262222).
* composer.json: Updated phpcs command in composer test (T280592).
* composer.json: Added phpcs command to scripts (T280592).

Change-Id: I39276efa5a6991f6216992840c497ae9d3b5fd7d

.eslintrc.json

@@ -1,7 +1,8 @@
 {
 	"root": true,
 	"extends": [
-		"wikimedia/server"
+		"wikimedia/server",
+		"wikimedia/mediawiki"
 	],
 	"overrides": [
 		{

composer.json

@@ -9,7 +9,7 @@
 	"scripts": {
 		"test": [
 			"parallel-lint . --exclude vendor --exclude node_modules",
-			"phpcs -p -s",
+			"@phpcs",
 			"minus-x check ."
 		],
 		"fix": [
@@ -21,6 +21,7 @@
 			"php ../../maintenance/generateSchemaSql.php --json sql/discussiontools_subscription.json --sql sql/postgres/discussiontools_subscription.sql --type postgres",
 			"php ../../maintenance/generateSchemaSql.php --json sql/discussiontools_subscription.json --sql sql/sqlite/discussiontools_subscription.sql --type sqlite"
 		],
-		"phan": "phan -d . --long-progress-bar"
+		"phan": "phan -d . --long-progress-bar",
+		"phpcs": "phpcs -sp --cache"
 	}
 }

package-lock.json

@@ -492,9 +492,9 @@
 			"dev": true
 		},
 		"ansi-regex": {
-			"version": "5.0.0",
-			"resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
-			"integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==",
+			"version": "5.0.1",
+			"resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
+			"integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
 			"dev": true
 		},
 		"ansi-styles": {