Simple-api-client

Upgrade vulnerable dependencies - Bump urllib3 from 1.26.4 to 1.26.5.

This release fixes a security vulnerability discovered and patched in a dependency.

See Bleach [3.3.0](https://github.com/mozilla/bleach/releases/tag/v3.3.0) for further details.

* Updated pipeline
* Added validation for host and path format.