Update PytestBenchmarkTest.yaml

Add pip install line

.github/workflows/PytestBenchmarkTest.yaml

@@ -18,6 +18,7 @@ jobs:
           python-version: 3.10.16
       - name: Run benchmark
         run: |
+          pip install -r requirements.txt
           pytest -k "test_benchmark_clone_valid_happy_path" --benchmark-json output.json
 
       - name: Store benchmark result