Use astral uv on CI testing

Author: goanpeca

.github/workflows/unit-tests.yml

@@ -143,7 +143,7 @@ jobs:
           # 3.1) mnist_with_tensorboard.py with tbX
           python examples/mnist/mnist_with_tensorboard.py --epochs=1
           # 3.2) mnist_with_tensorboard.py with native torch tb
-          uv pip uninstall -y tensorboardX
+          uv pip uninstall tensorboardX
           python examples/mnist/mnist_with_tensorboard.py --epochs=1
 
       - name: Run MNIST Example With Crash