Update dependencies

package.json

@@ -10,21 +10,21 @@
   "description": "High-level support for running, observing, and interacting with child processes in Node.js",
   "devDependencies": {
     "@istanbuljs/nyc-config-typescript": "1.0.1",
-    "@types/got": "9.6.9",
+    "@types/got": "9.6.11",
     "@types/merge-stream": "1.1.2",
-    "@types/mocha": "7.0.2",
-    "@types/node": "13.9.3",
+    "@types/mocha": "8.0.0",
+    "@types/node": "14.0.27",
     "@types/string-argv": "0.3.0",
-    "coveralls": "3.0.11",
-    "got": "10.6.0",
-    "mocha": "7.1.1",
-    "nyc": "15.0.0",
-    "portfinder": "1.0.25",
-    "prettier": "2.0.1",
-    "source-map-support": "0.5.16",
-    "ts-node": "8.8.1",
-    "tslint": "6.1.0",
-    "typescript": "3.8.3"
+    "coveralls": "3.1.0",
+    "got": "11.5.1",
+    "mocha": "8.0.1",
+    "nyc": "15.1.0",
+    "portfinder": "1.0.28",
+    "prettier": "2.0.5",
+    "source-map-support": "0.5.19",
+    "ts-node": "8.10.2",
+    "tslint": "6.1.2",
+    "typescript": "3.9.7"
   },
   "engines": {
     "yarn": ">= 1.5.0"