chore(deps): dtslint

Author: renovate[bot]

package.json

@@ -31,7 +31,7 @@
 				"@commitlint/travis-cli": "8.3.6",
 				"@mike-north/js-lib-renovate-config": "1.3.1",
 				"@mike-north/js-lib-semantic-release-config": "1.0.1",
-				"dtslint": "0.9.9",
+				"dtslint": "4.2.1",
 				"husky": "2.7.0",
 				"nodemon": "1.19.4",
 				"semantic-release": "15.13.3",