add math and longbench to test dependencies (#3321)

Author: jannalulu

.github/workflows/new_tasks.yml

@@ -55,7 +55,7 @@ jobs:
         if: steps.changed-tasks.outputs.tasks_any_modified == 'true' || steps.changed-tasks.outputs.api_any_modified == 'true'
         run: |
             python -m pip install --upgrade pip
-            pip install -e '.[dev,ifeval,unitxt]' --extra-index-url https://download.pytorch.org/whl/cpu
+            pip install -e '.[dev,ifeval,unitxt,math,longbench]' --extra-index-url https://download.pytorch.org/whl/cpu
     #   Install optional git dependencies
     #       pip install bleurt@https://github.com/google-research/bleurt/archive/b610120347ef22b494b6d69b4316e303f5932516.zip#egg=bleurt
     #       if [ -f requirements.txt ]; then pip install -r requirements.txt; fi