Update benchmarks.yml

Author: emdneto

.github/workflows/benchmarks.yml

@@ -16,12 +16,12 @@ jobs:
     steps:
     - name: Checkout Core Repo @ SHA - ${{ github.sha }}
       uses: actions/checkout@v4
+    - name: Install uv
+      uses: astral-sh/setup-uv@v6
+    - name: Install tox-uv
+      run: uv tool install --python 3.13 tox-uv
     - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3.13"
-    - name: Install tox
-      run: pip install tox-uv
+      run: uv python install 3.13
     - name: Run tox
       run: tox -e benchmark-opentelemetry-sdk -- -k opentelemetry-sdk/benchmarks --benchmark-json=opentelemetry-sdk/output.json
     - name: Report on SDK benchmark results