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.

---------

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

data/scripts/download_weights.sh

@@ -9,7 +9,7 @@
 #     ├── yolov5m.pt
 #     └── ...
 
-python - <<EOF
+python - << EOF
 from utils.downloads import attempt_download
 
 p5 = list('nsmlx')  # P5 models