Bump axios from 0.18.1 to 0.21.1

Bumps [axios](https://github.com/axios/axios) from 0.18.1 to 0.21.1.
- [Release notes](https://github.com/axios/axios/releases)
- [Changelog](https://github.com/axios/axios/blob/v0.21.1/CHANGELOG.md)
- [Commits](axios/axios@v0.18.1...v0.21.1)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -4,7 +4,7 @@
   "main": "src/Resolver.js",
   "description": "Vue API library for easy get data from Laravel REST Controller",
   "dependencies": {
-    "axios": "^0.18",
+    "axios": "^0.21",
     "lodash": "^4.17.10",
     "socket.io-client": "^2.2.0",
     "laravel-echo": "^1.5.3"