Ignore Torchbench CI on Tritonbench paths (#2481)

Summary:
Right now, Tritonbench is still sharing codebase with Torchbench.
Skip the Torchbench tests when the PR is on Tritonbench paths.

Pull Request resolved: #2481

Reviewed By: kit1980

Differential Revision: D63695702

Pulled By: xuzhao9

fbshipit-source-id: cc88e0a987ecca1daf09d35ddeca18f07bef9077

.github/workflows/pr-test.yml

@@ -1,10 +1,20 @@
 name: TorchBench PR Test
 on:
   pull_request:
+    # ignore tritonbench paths
+    paths-ignore:
+      - 'torchbenchmark/operators'
+      - 'torchbenchmark/util/triton_op.py'
+      - 'userbenchmark/triton'
   workflow_dispatch:
   push:
     branches:
       - main
+    # ignore tritonbench paths
+    paths-ignore:
+      - 'torchbenchmark/operators'
+      - 'torchbenchmark/util/triton_op.py'
+      - 'userbenchmark/triton'
 
 jobs:
   cpu-test: