build: Updating eslint-config-wikimedia to 0.27.0

Change-Id: I96a066dc8a4253a6be6485281a86e9a664d73fe3

package.json

@@ -13,7 +13,7 @@
 		"@wdio/local-runner": "7.30.1",
 		"@wdio/mocha-framework": "7.26.0",
 		"@wdio/spec-reporter": "7.29.1",
-		"eslint-config-wikimedia": "0.26.0",
+		"eslint-config-wikimedia": "0.27.0",
 		"grunt": "1.6.1",
 		"grunt-banana-checker": "0.11.1",
 		"grunt-eslint": "24.3.0",