misc/py-litellm: update to 1.29.5

Changelog:

• https://github.com/BerriAI/litellm/releases/tag/v1.28.8
• https://github.com/BerriAI/litellm/releases/tag/v1.28.9
• https://github.com/BerriAI/litellm/releases/tag/v1.28.10
• https://github.com/BerriAI/litellm/releases/tag/v1.28.11
• https://github.com/BerriAI/litellm/releases/tag/v1.28.13
• https://github.com/BerriAI/litellm/releases/tag/v1.29.1
• https://github.com/BerriAI/litellm/releases/tag/v1.29.3
• https://github.com/BerriAI/litellm/releases/tag/v1.29.4
• https://github.com/BerriAI/litellm/releases/tag/v1.29.5

Reported by: Repology