build(deps): bump axios from 0.21.4 to 0.24.0

Bumps [axios](https://github.com/axios/axios) from 0.21.4 to 0.24.0.
- [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/v0.21.4...v0.24.0)

---
updated-dependencies:
- dependency-name: axios
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

plugins/rollbar-backend/package.json

@@ -34,7 +34,7 @@
     "@backstage/backend-common": "^0.9.12",
     "@backstage/config": "^0.1.10",
     "@types/express": "^4.17.6",
-    "axios": "^0.21.1",
+    "axios": "^0.24.0",
     "camelcase-keys": "^6.2.2",
     "compression": "^1.7.4",
     "cors": "^2.8.5",