Bump axios from 0.19.0 to 0.21.1

Bumps [axios](https://github.com/axios/axios) from 0.19.0 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@v0.19.0...v0.21.1)

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

Author: dependabot[bot]

package-lock.json

@@ -11,7 +11,7 @@
     },
     "devDependencies": {
         "@amcharts/amcharts4": "^4.5.3",
-        "axios": "^0.19.0",
+        "axios": "^0.21.1",
         "bootstrap": "^4.1.0",
         "cross-env": "^5.1",
         "jquery": "^3.2",