Update dependency tslint to v6 (#27)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

package.json

@@ -43,7 +43,7 @@
     "pre-commit": "^1.2.2",
     "rdf-dataset-indexed": "^0.4.0",
     "ts-jest": "^25.1.0",
-    "tslint": "^5.8.0",
+    "tslint": "^6.0.0",
     "tslint-eslint-rules": "^5.3.1",
     "typescript": "^3.0.1"
   },

yarn.lock

@@ -3655,7 +3655,12 @@ tslib@1.9.0:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.0.tgz#e37a86fda8cbbaf23a057f473c9f4dc64e5fc2e8"
   integrity sha512-f/qGG2tUkrISBlQZEjEqoZ3B2+npJjIf04H1wuAv9iA8i04Icp+61KRXxFdha22670NJopsZCIjhC3SnjPRKrQ==
 
-tslib@^1.8.0, tslib@^1.8.1:
+tslib@^1.10.0:
+  version "1.11.1"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.11.1.tgz#eb15d128827fbee2841549e171f45ed338ac7e35"
+  integrity sha512-aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA==
+
+tslib@^1.8.1:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.10.0.tgz#c3c19f95973fb0a62973fb09d90d961ee43e5c8a"
   integrity sha512-qOebF53frne81cf0S9B41ByenJ3/IuH8yJKngAX35CmiZySA0khhkovshKK+jGCaMnVomla7gVlIcc3EvKPbTQ==
@@ -3669,10 +3674,10 @@ tslint-eslint-rules@^5.3.1:
     tslib "1.9.0"
     tsutils "^3.0.0"
 
-tslint@^5.8.0:
-  version "5.20.1"
-  resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.20.1.tgz#e401e8aeda0152bc44dd07e614034f3f80c67b7d"
-  integrity sha512-EcMxhzCFt8k+/UP5r8waCf/lzmeSyVlqxqMEDQE7rWYiQky8KpIBz1JAoYXfROHrPZ1XXd43q8yQnULOLiBRQg==
+tslint@^6.0.0:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/tslint/-/tslint-6.1.0.tgz#c6c611b8ba0eed1549bf5a59ba05a7732133d851"
+  integrity sha512-fXjYd/61vU6da04E505OZQGb2VCN2Mq3doeWcOIryuG+eqdmFUXTYVwdhnbEu2k46LNLgUYt9bI5icQze/j0bQ==
   dependencies:
     "@babel/code-frame" "^7.0.0"
     builtin-modules "^1.1.1"
@@ -3685,7 +3690,7 @@ tslint@^5.8.0:
     mkdirp "^0.5.1"
     resolve "^1.3.2"
     semver "^5.3.0"
-    tslib "^1.8.0"
+    tslib "^1.10.0"
     tsutils "^2.29.0"
 
 tsutils@^2.29.0: