Update performance_benchmark.yml

Remove invalid working directory call

Author: MWSestabro

.github/workflows/performance_benchmark.yml

@@ -50,7 +50,6 @@ jobs:
                   cmake -S . -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DWITH_EXAMPLES=ON -DUSE_BATCH_FOR_MCC=ON -DOTEL_MATLAB_VERSION=${{ needs.get_version.outputs.version }} -DCMAKE_INSTALL_PREFIX=${{ env.OPENTELEMETRY_MATLAB_INSTALL }}
                   cmake --build build --config Release --target install
             - name: Run Benchmark
-              working-directory: opentelemetry-matlab
               env:
                  # Add the installation directory to the MATLAB Search Path by
                  # setting the MATLABPATH environment variable.
@@ -68,4 +67,4 @@ jobs:
               with:
                 tool: 'customSmallerIsBetter'
                 output-file-path: ./Benchmarks/OutputBenchmark.json
-                external-data-json-path: ./cache/OutputBenchmark.json
+                external-data-json-path: ./cache/OutputBenchmark.json