chore: bump airbyte-cdk and fastmcp to latest versions

[aaronsteers]

chore: bump airbyte-cdk and fastmcp to latest versions

Summary

Updates two core dependencies to their latest published versions:

• airbyte-cdk: >=6.0,<7.0 → >=6.61.6,<7.0.0 (tightens constraint to latest version 6.61.6)
• fastmcp: >=0.2.0 → >=2.11.3,<3.0.0 (major version jump from 0.x to 2.x series)

The lock file (uv.lock) has been updated with all transitive dependency changes. The uv sync operation completed successfully, and tests show 97/100 passing with 1 failure unrelated to dependency changes (external privatebin service expired).

Review & Testing Checklist for Human

⚠️ MEDIUM RISK - Major version jump in fastmcp dependency requires validation:

• Run full test suite locally - Verify the 1 test failure (test_privatebin_integration) is still the only failure and is unrelated to dependency changes
• Test core MCP functionality - Verify manifest validation, resolution, and stream testing still work with updated airbyte-cdk
• Test fastmcp integration - Ensure the major version jump from 0.x → 2.x doesn't break MCP server functionality or tool execution

Notes

• The fastmcp version jump from 0.2.0 → 2.11.3 is significant and could contain breaking changes
• Tests were run after dependency update: 97 passed, 1 failed (external service issue), 2 skipped
• This PR is part of a coordinated dependency update across airbyte repositories
• Requested by @aaronsteers in Devin session: https://app.devin.ai/sessions/6b1cc69724f94c14b550243a8db5c698

[devin-ai-integration]

Original prompt from AJ Steers

@Devin can you create one PR each to bump PyAirbyte and connector builder MCP to use the latest airbyte-cdk version? They should both also be bumped to use the latest version of fastmcp. Use a min condition of the latest published version of each and a less-than condition for the next major version

[devin-ai-integration]

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[github-actions]

👋 Greetings, Airbyte Team Member!

Here are some helpful tips and reminders for your convenience.

Testing This Branch via MCP

To test the changes in this specific branch with an MCP client like Claude Desktop, use the following configuration:

{
  "mcpServers": {
    "connector-builder-mcp-dev": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/airbytehq/connector-builder-mcp.git@devin/1756509527-bump-dependencies", "connector-builder-mcp"]
    }
  }
}

Testing This Branch via CLI

You can test this version of the MCP Server using the following CLI snippet:

# Run the CLI from this branch:
uvx 'git+https://github.com/airbytehq/connector-builder-mcp.git@devin/1756509527-bump-dependencies#egg=airbyte-connector-builder-mcp' --help

PR Slash Commands

Airbyte Maintainers can execute the following slash commands on your PR:

• /autofix - Fixes most formatting and linting issues
• /poe <command> - Runs any poe command in the uv virtual environment
• /poe build-connector prompt="Star Wars API" - Run the connector builder using the Star Wars API.

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[github-actions]

PyTest Results (Fast)

0 tests  ±0   0 ✅ ±0   0s ⏱️ ±0s
0 suites ±0   0 💤 ±0 
0 files   ±0   0 ❌ ±0 

Results for commit 139b34b. ± Comparison against base commit a84c52d.

♻️ This comment has been updated with latest results.

[github-actions]

PyTest Results (Full)

0 tests   0 ✅  0s ⏱️
0 suites  0 💤
0 files    0 ❌

Results for commit 139b34b.

♻️ This comment has been updated with latest results.