chore: update dev-dependencies (#48)

package.json

@@ -55,14 +55,14 @@
     "access": "public"
   },
   "devDependencies": {
-    "@types/mocha": "8.2.1",
-    "@types/node": "14.14.28",
-    "@types/sinon": "9.0.10",
+    "@types/mocha": "8.2.2",
+    "@types/node": "14.14.42",
+    "@types/sinon": "10.0.0",
     "@types/webpack-env": "1.16.0",
-    "@typescript-eslint/eslint-plugin": "4.15.1",
-    "@typescript-eslint/parser": "4.15.1",
+    "@typescript-eslint/eslint-plugin": "4.22.0",
+    "@typescript-eslint/parser": "4.22.0",
     "codecov": "3.8.1",
-    "eslint": "7.20.0",
+    "eslint": "7.25.0",
     "eslint-plugin-header": "3.1.1",
     "eslint-plugin-import": "2.22.1",
     "gh-pages": "3.1.0",
@@ -74,15 +74,15 @@
     "karma-mocha": "2.0.1",
     "karma-spec-reporter": "0.0.32",
     "karma-webpack": "4.0.2",
-    "lerna-changelog": "^1.0.1",
-    "linkinator": "2.13.5",
+    "lerna-changelog": "1.0.1",
+    "linkinator": "2.13.6",
     "mocha": "7.2.0",
     "nyc": "15.1.0",
-    "sinon": "9.2.4",
-    "ts-loader": "8.0.17",
+    "sinon": "10.0.0",
+    "ts-loader": "8.2.0",
     "ts-mocha": "8.0.0",
-    "typedoc": "0.20.25",
-    "typescript": "4.1.5",
+    "typedoc": "0.20.36",
+    "typescript": "4.2.4",
     "webpack": "4.46.0"
   }
 }