Increase test time out for test workflow OSS CI (#3134)

Summary:
Pull Request resolved: #3134

Failures on OSS CI test workflow are due to time-out during unit testing.
https://github.com/pytorch/FBGEMM/actions/runs/10851972782

This diff increases time-out so all tests can be run.

Reviewed By: q10, sryap

Differential Revision: D62649448

fbshipit-source-id: 5911b2dca3351eab60cf32eb008b433d2b47236f

.github/workflows/fbgemm_gpu_pip.yml

@@ -160,7 +160,7 @@ jobs:
       run: . $PRELUDE; install_fbgemm_gpu_pip $BUILD_ENV ${{ github.event.inputs.fbgemm_gpu_channel_version || 'nightly' }} cuda/${{ matrix.cuda-version }}
 
     - name: Test with PyTest
-      timeout-minutes: 20
+      timeout-minutes: 40
       run: . $PRELUDE; test_all_fbgemm_gpu_modules $BUILD_ENV