Dependabot doesn't open PRs for torch

[kmantel]

First noticed in #1843

The only special thing I can see is the environment markers sys_platform != 'win32' and platform_machine == 'x86_64' and platform_python_implementation == 'CPython', but dependabot is supposed to support them as of v0.118.3.

[jvesely]

Moreover the current constraint is <2.0.0 which automatically includes all new releases