build(test-clickhouse-driver): Migrate to uv and pyproject.toml

[ericapisani]

Summary

• Replace pip/requirements.txt with uv/pyproject.toml for dependency management
• Update run.sh to use uv run instead of manual venv creation and pip install
• Remove legacy requirements.txt

Refs PY-2438

Test plan

• Verify pyproject.toml includes all dependencies from the original requirements.txt
• Verify run.sh uses uv run
• Verify requirements.txt is removed

🤖 Generated with Claude Code

[linear-code]

PY-2438

[sentry]

Bug: The script installs uv but doesn't update the PATH for the current shell session, causing the subsequent uv run command to fail.
_{Severity: HIGH}

Suggested Fix

After installing uv, update the PATH for the current session before uv is called. For example, add export PATH="$HOME/.local/bin:$PATH" to the script. This ensures the uv binary is found and executed within the same script run.

Prompt for AI Agent

Review the code at the location below. A potential bug has been identified by an AI
agent. Verify if this is a real issue. If it is, propose a fix; if not, explain why it's
not valid.

Location: test-clickhouse-driver/run.sh#L4-L8

Potential issue: The script installs the `uv` package if it is not found. However, the
installer adds the `uv` binary to a directory like `~/.local/bin` and updates shell
profile files for future sessions, but it does not modify the `PATH` of the current
running shell. Consequently, the subsequent command `uv run python main.py` will fail
with a 'command not found' error in any environment where `uv` was not previously
installed and in the `PATH`, such as a clean CI or Docker container.

_{Did we get this right? 👍 / 👎 to inform future reviews.}