Bump axios from 0.19.2 to 0.21.1 in /client

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/v0.21.1/CHANGELOG.md)
- [Commits](axios/axios@v0.19.2...v0.21.1)

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

Author: dependabot[bot]

client/package.json

@@ -21,7 +21,7 @@
         "@react-navigation/core": "^5.9.0",
         "@react-navigation/native": "^5.5.0",
         "@react-navigation/stack": "^5.4.1",
-        "axios": "^0.19.2",
+        "axios": "^0.21.1",
         "expo": "^37.0.12",
         "expo-asset": "^8.1.5",
         "expo-constants": "~9.0.0",