Update Python dependencies across all packages

[devin-ai-integration]

Description

This PR updates Python dependencies across all packages in the teal-agents repository to their latest compatible versions using uv sync --upgrade. The primary motivation was to resolve a Python version conflict where some packages required >=3.11 while shared dependencies (ska-utils) required >=3.12, causing dependency resolution failures during updates.

Changes

• Standardized Python version requirement to >=3.12 across all packages for consistency
• Updated dependencies using uv sync --upgrade for all 7 packages:
  • sk-agents
  • assistant-orchestrator (orchestrator + services)
  • collab-orchestrator
  • ska-utils
  • workflow-orchestrator
  • examples
• Fixed .python-version files to use Python 3.12.8 in workflow-orchestrator and examples
• Updated lock files with latest compatible versions for all packages

Major dependency version updates:

• fastapi: 0.116.1 → 0.117.1
• pydantic: 2.11.7 → 2.11.9
• redis: 6.4.0 → 7.0.0b1
• anthropic: 0.64.0 → 0.68.0
• Plus many other minor/patch updates across ~200 dependencies

Type of Change

• Bugfix (resolving Python version conflicts)
• New feature
• Refactor (dependency updates)
• Documentation
• Other

Additional Comments

⚠️ Important for Review:

• Python 3.12 requirement: This is a breaking change that bumps minimum Python version from 3.11 to 3.12. Ensure all deployment environments and developer setups support Python 3.12.
• No CI validation: No CI checks ran for this PR, so manual testing is recommended to verify compatibility.
• Redis beta version: Note that redis was updated to 7.0.0b1 (beta version) - consider if this is acceptable for production.

Verification completed:

• All packages can sync successfully without dependency conflicts
• No build or import errors detected during verification
• 11 files updated (mostly lock files) with significant changes to dependency versions

Link to Devin run: https://app.devin.ai/sessions/9aed1cae17994bbaa3249afd08fefc9d
Requested by: @bellanma_merck

Human Review Checklist:

• Verify Python 3.12 compatibility with deployment environments
• Test critical application flows with updated dependencies
• Review redis 7.0.0b1 beta version usage for production readiness
• Check for any breaking changes in major dependency updates
• Ensure all team members have Python 3.12 available in their dev environments

[devin-ai-integration]

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