fix: wrap output str primitive

[radu-mocanu]

• wrap output str primitive

[Copilot]

Pull request overview

This PR adds special handling for string primitives in runtime results by wrapping them in a dictionary before output serialization. The version is bumped from 0.2.8 to 0.2.9.

Key Changes:

• String output values are now wrapped in {"output": <string_value>} format in the to_dict() method
• Test coverage added to verify string wrapping behavior
• Version updated across project configuration files

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 2 comments.

File	Description
src/uipath/runtime/result.py	Adds conditional logic to wrap string outputs in a dictionary with key 'output'
tests/test_context.py	Adds test case verifying that string outputs are properly wrapped in a dictionary
pyproject.toml	Updates package version from 0.2.8 to 0.2.9
uv.lock	Updates locked version from 0.2.8 to 0.2.9

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