install xcpretty

Author: ncooke3

.github/workflows/performance.yml

@@ -97,6 +97,10 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@354a1ad156761f5ee2b7b13fa8e09943a5e8d252 # v1
+    - name: Setup Bundler
+      run: scripts/setup_bundler.sh
+    - name: Install xcpretty
+      run: gem install xcpretty
     - uses: actions/setup-python@v5
       with:
         python-version: '3.11'