Update the metal reference

The PR has been merged to main.

Signed-off-by: Dimitri Gnidash <[email protected]>

Author: dimitri-tenstorrent

.github/workflows/hardware-long.yml

@@ -187,7 +187,7 @@ jobs:
           path: tt-metal
           lfs: true
           submodules: true
-          ref: abhullar/bh-virtual
+          ref: main
           fetch-depth: 500
           fetch-tags: true
       - name: Build Metal UMD Tests