Bump axios from 0.19.2 to 0.21.1

Bumps [axios](https://github.com/axios/axios) from 0.19.2 to 0.21.1.
- [Release notes](https://github.com/axios/axios/releases)
- [Changelog](https://github.com/axios/axios/blob/master/CHANGELOG.md)
- [Commits](axios/axios@v0.19.2...v0.21.1)

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package.json

@@ -16,7 +16,7 @@
   "author": "Ian Lenny Matthews",
   "license": "ISC",
   "dependencies": {
-    "axios": "^0.19.0",
+    "axios": "^0.21.1",
     "bootstrap": "^4.6.0",
     "css-loader": "^5.1.2",
     "express": "^4.17.1",