[Security] Bump axios from 0.20.0 to 0.21.1

Bumps [axios](https://github.com/axios/axios) from 0.20.0 to 0.21.1. **This update includes a security fix.**
- [Release notes](https://github.com/axios/axios/releases)
- [Changelog](https://github.com/axios/axios/blob/v0.21.1/CHANGELOG.md)
- [Commits](https://github.com/axios/axios/compare/v0.20.0...v0.21.1)

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

package.json

@@ -18,7 +18,7 @@
   "dependencies": {
     "@grpc/grpc-js": "^1.2.2",
     "@grpc/proto-loader": "^0.5.5",
-    "axios": "^0.20.0",
+    "axios": "^0.21.1",
     "basic-auth": "^2.0.0",
     "big.js": "^5.2.2",
     "bitcore-lib": "^0.15.0",