Unity Tests ref Commit fixed

Author: rob1997

.github/workflows/unity_tests.yml

@@ -18,6 +18,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
       with:
+        ref: ${{ github.head_ref || github.ref_name }}
         lfs: true
         submodules: recursive
     - name: Install Foundry