Update type dependencies

Author: renovate[bot]

package.json

@@ -31,7 +31,7 @@
   "devDependencies": {
     "@types/chai": "^4.2.0",
     "@types/mocha": "^5.2.7",
-    "@types/node": "^12.7.1",
+    "@types/node": "^12.20.55",
     "@voxpelli/eslint-config": "^4.0.0",
     "chai": "^4.2.0",
     "coveralls": "^3.0.5",
@@ -49,7 +49,7 @@
     "mocha": "^7.0.1",
     "npm-run-all": "^4.1.5",
     "nyc": "^15.0.0",
-    "typescript": "^3.5.3"
+    "typescript": "^3.9.10"
   },
   "dependencies": {
     "strftime": "^0.10.0",