Remove color in CI (#133517)

Remove color by default to make CI logs easier to read

Example of color
<img width="569" alt="image" src="https://github.com/user-attachments/assets/0da13544-98b1-47be-8383-64a5b3fd8951">

Pull Request resolved: https://github.com/pytorch/pytorch/pull/133517
Approved by: https://github.com/ZainRizvi

pytest.ini

@@ -4,8 +4,6 @@ addopts =
     -rEfX
     # Make tracebacks shorter
     --tb=native
-    # Color the output
-    --color=yes
     # capture only Python print and C++ py::print, but not C output (low-level Python errors)
     --capture=sys
     # don't suppress warnings, but don't shove them all to the end either