Update the version of a2a-sdk version in pyproject.toml

[QJ-0511]

The version "0.3.0" is not applicable for "a2a-sdk" anymore. Running the script "samples/python/agents/a2a_mcp/run.sh" will generates the following issues:

  × Failed to download `a2a-sdk==0.3.0`
  ├─▶ Failed to fetch:
  │   `https://files.pythonhosted.org/packages/a5/92/16bfbc2ef0ef037c5860ef3b13e482aeb1860b9643bf833ed522c995f639/a2a_sdk-0.3.0-py3-none-any.whl`
  ╰─▶ HTTP status client error (404 Not Found) for url
      (https://files.pythonhosted.org/packages/a5/92/16bfbc2ef0ef037c5860ef3b13e482aeb1860b9643bf833ed522c995f639/a2a_sdk-0.3.0-py3-none-any.whl)
  help: `a2a-sdk` (v0.3.0) was included because `a2a-mcp` (v0.1.0) depends on `a2a-sdk`

Updating the version to 0.3.22 could fix the issue.

[gemini-code-assist]

Summary of Changes

Hello @QJ-0511, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses a critical dependency resolution issue by updating the version constraint for the a2a-sdk in the project's pyproject.toml file. The previous version was unavailable, leading to build failures. By specifying a newer, accessible version, this change ensures that the project can correctly fetch its dependencies and resume normal build and execution processes.

Highlights

• Dependency Update: The a2a-sdk dependency in samples/python/agents/a2a_mcp/pyproject.toml has been updated from version 0.3.0 to 0.3.10. This resolves a 404 Not Found error encountered when attempting to download the older 0.3.0 package, which was preventing the project from building.

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[gemini-code-assist]

Code Review

This pull request updates the a2a-sdk dependency in pyproject.toml to resolve a download failure for an older, unavailable version. The change correctly raises the minimum version requirement. My review points out a discrepancy between the version number mentioned in the pull request description (0.3.22) and the one implemented in the code (>=0.3.10), with a suggestion to align them for consistency and to ensure the intended fix is applied.

[gemini-code-assist]

The pull request description mentions that updating to version 0.3.22 would fix the issue, but the dependency has been updated to >=0.3.10. For consistency and to ensure the intended fix is applied, it would be better to align the code with the description. Would you consider updating this to >=0.3.22?

Suggested change

	"a2a-sdk[sql]>=0.3.22",
	"a2a-sdk[sql]>=0.3.22",

[QJ-0511]

It's consistent now.