⬆️ Upgrade dependencies.

package.json

@@ -27,27 +27,27 @@
     "prepare": "npm run-script build"
   },
   "devDependencies": {
-    "@babel/core": "^7.13.1",
-    "@babel/preset-env": "^7.13.5",
-    "@babel/register": "^7.13.0",
-    "@vue/test-utils": "^1.1.3",
+    "@babel/core": "^7.15.8",
+    "@babel/preset-env": "^7.15.8",
+    "@babel/register": "^7.15.3",
+    "@vue/test-utils": "^1.2.2",
     "ava": "^3.15.0",
     "babel-preset-env": "^1.7.0",
     "browser-env": "^3.3.0",
-    "eslint": "^7.20.0",
-    "eslint-config-standard": "^16.0.2",
-    "eslint-plugin-import": "^2.22.1",
+    "eslint": "^8.0.1",
+    "eslint-config-standard": "^16.0.3",
+    "eslint-plugin-import": "^2.25.2",
     "eslint-plugin-node": "^11.1.0",
-    "eslint-plugin-promise": "^4.3.1",
+    "eslint-plugin-promise": "^5.1.0",
     "eslint-plugin-standard": "^5.0.0",
     "nyc": "^15.1.0",
     "require-extension-hooks": "^0.3.3",
     "require-extension-hooks-vue": "^3.0.0",
-    "rollup": "^2.39.1",
+    "rollup": "^2.58.0",
     "rollup-plugin-babel": "^4.4.0",
     "rollup-plugin-terser": "^7.0.2",
-    "vue": "^2.6.12",
-    "vue-template-compiler": "^2.6.12"
+    "vue": "^2.6.14",
+    "vue-template-compiler": "^2.6.14"
   },
   "engines": {
     "node": ">= 12.16.0",