Update linux.yml

Author: sbalandi

.github/workflows/linux.yml

@@ -895,7 +895,7 @@ jobs:
       - name: Test LLM Benchmark Tools
         if: ${{ fromJSON(needs.smart_ci.outputs.affected_components).llm_bench }}
         run: |
-          pip install ${{ env.SRC_DIR }}/tools/llm_bench/requirements.txt
+          pip install -r ${{ env.SRC_DIR }}/tools/llm_bench/requirements.txt
           source ${{ env.INSTALL_DIR }}/setupvars.sh
           python -m pytest -vs ${{ env.SRC_DIR }}/tests/python_tests/samples/test_tools_llm_benchmark.py -m "samples"
         env: