Bump axios from 0.19.2 to 0.20.0 in /packages/webapp

Bumps [axios](https://github.com/axios/axios) from 0.19.2 to 0.20.0.
- [Release notes](https://github.com/axios/axios/releases)
- [Changelog](https://github.com/axios/axios/blob/master/CHANGELOG.md)
- [Commits](https://github.com/axios/axios/compare/v0.19.2...v0.20.0)

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

packages/webapp/package.json

@@ -4,7 +4,7 @@
   "version": "1.0.0",
   "author": "Nebulous",
   "dependencies": {
-    "axios": "^0.19.2",
+    "axios": "^0.20.0",
     "bytes": "^3.1.0",
     "classnames": "^2.2.6",
     "gatsby": "^2.24.47",