bump ocean version in toml (#657)

# Description

What - bump ocean version in toml to 0.5.21

## Type of change

Please leave one option from the following and delete the rest:

- [ ] Bug fix (non-breaking change which fixes an issue)
- [x] New feature (non-breaking change which adds functionality)
- [ ] New Integration (non-breaking change which adds a new integration)
- [ ] Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] Non-breaking change (fix of existing functionality that will not
change current behavior)
- [ ] Documentation (added/updated documentation)

## Screenshots

Include screenshots from your environment showing how the resources of
the integration will look.

## API Documentation

Provide links to the API documentation used for this integration.

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "port-ocean"
-version = "0.5.20"
+version = "0.5.21"
 description = "Port Ocean is a CLI tool for managing your Port projects."
 readme = "README.md"
 homepage = "https://app.getport.io"