fix(deps): add pydantic-settings to cli and all extras

- Added pydantic-settings>=2.0.0 to cli extra dependencies
- Included in all extras bundle for complete test coverage
- Resolves ModuleNotFoundError for pydantic_settings in CLI tests
- Required for datafog.config BaseSettings functionality

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: sidmohan0

setup.py

@@ -43,6 +43,7 @@
     ],
     "cli": [
         "typer>=0.12.0",
+        "pydantic-settings>=2.0.0",
     ],
     "crypto": [
         "cryptography>=40.0.0",
@@ -66,6 +67,7 @@
         "aiohttp>=3.8.0",
         "requests>=2.30.0",
         "typer>=0.12.0",
+        "pydantic-settings>=2.0.0",
         "cryptography>=40.0.0",
     ],
 }