Add libtbb12 installation back for OpenUSD tests

Despite TBB being included in the OpenUSD binary package, the system
still requires libtbb12 to be installed for proper library resolution.
This ensures usdcat and other OpenUSD binaries can find libtbb.so.12.

Fixes failure in workflow run #20869757118.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.github/workflows/linux_ci.yml

@@ -117,6 +117,11 @@ jobs:
       run: cd build && ctest --output-on-failure
 
     # Test with OpenUSD binary
+    - name: Install TBB dependency
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y libtbb12
+
     - name: Download OpenUSD binary
       run: |
         gh release download v25.11-lte \
@@ -279,6 +284,11 @@ jobs:
       run: cd build && ctest --output-on-failure
 
     # Test with OpenUSD binary (ARM64)
+    - name: Install TBB dependency (ARM64)
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y libtbb12
+
     - name: Download OpenUSD binary (ARM64)
       run: |
         gh release download v25.11-lte \