Use `uv` for pip installs (#13586)

* Update tests to `pip install -e .`

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>

* Auto-format by https://ultralytics.com/actions

* Update pyproject.toml

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>

* Use `setup-uv` and `uv pip` for package management.

Replaced `setup-python` with `setup-uv` and updated pip commands to use the `uv` tool for dependency installation and listing. Simplifies package management and integrates

* Use `setup-uv` and `uv pip` for package management.

Replaced `setup-python` with `setup-uv` and updated pip commands to use the `uv` tool for dependency installation and listing. Simplifies package management and integrates-uv` for improved workflow consistency.

* Use `setup-uv` and `uv pip` for package management.

Replaced `setup-python` with `setup-uv` and updated pip commands to use the `uv` tool for dependency installation and listing. Simplifies package management and integrates-uv` for improved workflow consistency.

* Use `setup-uv` and `uv pip` for package management.

Replaced `setup-python` with `setup-uv` and updated pip commands to use the `uv` tool for dependency installation and listing. Simplifies package management and integrates-uv` for improved workflow consistency.

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Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>
Co-authored-by: UltralyticsAssistant <web@ultralytics.com>