feat: drop Node {10,11,12,13} support

BREAKING CHANGE: Node >= 14 required

14 is the oldest currently supported version. See https://github.com/nodejs/release#release-schedule

Author: jonasgloning

package-lock.json

@@ -55,7 +55,7 @@
     "@types/express": "^4.17.3",
     "@types/ws": "^7.2.3",
     "@types/mocha": "^7.0.2",
-    "@types/node": "^10.17.17",
+    "@types/node": "^14.18.33",
     "@types/uuid": "^3.4.8",
     "@typescript-eslint/eslint-plugin": "^2.24.0",
     "@typescript-eslint/parser": "^2.24.0",
@@ -72,6 +72,6 @@
     "typescript": "^4.1.2"
   },
   "engines": {
-    "node": ">=10"
+    "node": ">=14"
   }
 }