feat(api): make Workspace created_by optional

[briangreunke]

Summary

This change modifies the Workspace model to make the created_by field optional. Previously, this field was a mandatory UUID, but it can now accept None and defaults to None.

Conventional Commit Breakdown

• Type: feat
• Subject: make Workspace created_by optional

Key Changes

• dreadnode/api/models.py:
  • Modified the Workspace model by changing the created_by field's type hint from UUID to UUID | None = None, making it optional with a default value of None.

Testing/Verification

Tested locally by reviewing the model definition and ensuring it aligns with the intended optionality.

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Generated Summary:

• Updated the created_by field in the Workspace model to allow for None values.
• Changed type from UUID to UUID | None, enhancing flexibility for workspace creation.
• Potential impact includes allowing workspaces to be created without a specified user, which may be beneficial for certain workflows or services.

This summary was generated with ❤️ by rigging