chore(deps-dev): bump tslint from 5.18.0 to 5.19.0

Bumps [tslint](https://github.com/palantir/tslint) from 5.18.0 to 5.19.0.
- [Release notes](https://github.com/palantir/tslint/releases)
- [Changelog](https://github.com/palantir/tslint/blob/master/CHANGELOG.md)
- [Commits](palantir/tslint@5.18.0...5.19.0)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -76,7 +76,7 @@
     "ts-node": "~8.3.0",
     "tsickle": ">=0.36.0",
     "tslib": "^1.10.0",
-    "tslint": "~5.18.0",
+    "tslint": "~5.19.0",
     "typescript": "^3.2.4"
   },
   "config": {