Update packages

package.json

@@ -14,19 +14,18 @@
     "test": "ts-mocha --project ./tsconfig.json test/**/*.ts"
   },
   "devDependencies": {
-    "@types/expect": "^24.3.0",
-    "@types/mocha": "^7.0.2",
+    "@types/mocha": "^8.2.2",
     "@types/node": "11",
-    "expect": "^26.0.1",
-    "mocha": "^7.1.2",
-    "ts-mocha": "^7.0.0",
-    "tslint": "^6.1.2",
-    "typescript": "^3.8.3"
+    "expect": "^27.0.6",
+    "mocha": "^9.0.1",
+    "ts-mocha": "^8.0.0",
+    "tslint": "^6.1.3",
+    "typescript": "^4.3.5"
   },
   "dependencies": {
-    "config": "^3.3.1",
+    "config": "^3.3.6",
     "escape-html": "^1.0.3",
-    "js-yaml": "^3.13.1",
-    "matrix-bot-sdk": "^0.5.4"
+    "js-yaml": "^4.1.0",
+    "matrix-bot-sdk": "^0.5.18"
   }
 }