Set oss.folly_cxx_tests buckconfig to false

[swolchok]

This is an option in the Buck shims that controls whether cxx_tests automatically depend on folly. ExecuTorch doesn't use folly.

[swolchok]

Stack from ghstack (oldest at bottom):

• -> Set oss.folly_cxx_tests buckconfig to false #9088
• Update shim submodule #9087

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/9088

• 📄 Preview Python docs built from this PR

Note: Links to docs will display an error until the docs builds have been completed.

❌ 1 New Failure

As of commit 0b1f85e with merge base 1d34caf ():

NEW FAILURE - The following job has failed:

• Lint / lintrunner / linux-job (gh)
  >>> Lint for backends/cadence/aot/remove_ops.py:

This comment was automatically generated by Dr. CI and updates every 15 minutes.