chore(deps): update dependency ts-node to ^8.4.1

Author: renovate-bot

package.json

@@ -59,7 +59,7 @@
     "prettier": "^1.18.2",
     "semantic-release": "^15.13.3",
     "sourcegraph": "^23.0.1",
-    "ts-node": "^8.1.0",
+    "ts-node": "^8.4.1",
     "tslint": "^5.20.1",
     "typescript": "^3.4.5"
   },

yarn.lock

@@ -1502,7 +1502,7 @@ dezalgo@^1.0.0, dezalgo@~1.0.3:
     asap "^2.0.0"
     wrappy "1"
 
-[email protected], diff@^3.1.0:
+[email protected]:
   version "3.5.0"
   resolved "https://registry.npmjs.org/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"
   integrity sha512-A46qtFgd+g7pDZinpnwiRJtxbC1hpgf0uzP3iG89scHk0AUC7A1TGxf5OiiOUv/JMZR8GOt8hL900hV0bOy5xA==
@@ -5418,13 +5418,13 @@ trim-right@^1.0.1:
   resolved "https://registry.npmjs.org/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
   integrity sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM=
 
-ts-node@^8.1.0:
-  version "8.1.0"
-  resolved "https://registry.npmjs.org/ts-node/-/ts-node-8.1.0.tgz#8c4b37036abd448577db22a061fd7a67d47e658e"
-  integrity sha512-34jpuOrxDuf+O6iW1JpgTRDFynUZ1iEqtYruBqh35gICNjN8x+LpVcPAcwzLPi9VU6mdA3ym+x233nZmZp445A==
+ts-node@^8.4.1:
+  version "8.4.1"
+  resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-8.4.1.tgz#270b0dba16e8723c9fa4f9b4775d3810fd994b4f"
+  integrity sha512-5LpRN+mTiCs7lI5EtbXmF/HfMeCjzt7DH9CZwtkr6SywStrNQC723wG+aOWFiLNn7zT3kD/RnFqi3ZUfr4l5Qw==
   dependencies:
     arg "^4.1.0"
-    diff "^3.1.0"
+    diff "^4.0.1"
     make-error "^1.1.1"
     source-map-support "^0.5.6"
     yn "^3.0.0"