fix(python): cap mcp<2 dependency in fetch, git, and time servers

[AbhiPra24]

Summary

Fixes #4570, #4580, #4600, #4560.

Problem

src/time/pyproject.toml, src/git/pyproject.toml, and src/fetch/pyproject.toml declared unpinned mcp>=... dependencies without an upper bound <2. When mcp 2.0.0 is resolved (e.g. via uvx), the servers crash on startup with ImportError: cannot import name 'McpError' due to breaking changes in MCP Python SDK 2.0.0.

Solution

• Bounded mcp dependency to <2 across fetch, git, and time servers (pyproject.toml and updated lockfiles uv.lock).

Verification

• pytest executed across all three servers:
  • src/fetch: 20 passed
  • src/git: 43 passed
  • src/time: 38 passed

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cc @olaservo for review when available. Thank you!

[olaservo]

Thank you for the PR! This was superseded by #4663, released as 2026.8.18, which caps mcp<2 across all three Python servers and raises the floor to 1.29.0. Closing as superseded.