[MAINTENANCE] Only run python 3.13 marker tests on PRs (#11666)

Author: tyler-hoffman

.github/workflows/ci.yml

@@ -686,10 +686,13 @@ jobs:
           # TODO: would like to adopt `actionlint` pre-commit hook
           # but false positive here and inability to do an inline ignore
           # prevents this https://github.com/rhysd/actionlint/issues/237
+          - python-version: ${{ github.event_name == 'pull_request_target' && '3.10' }}
           - python-version: ${{ github.event_name == 'pull_request_target' && '3.11' }}
           - python-version: ${{ github.event_name == 'pull_request_target' && '3.12' }}
+          - python-version: ${{ github.event_name == 'merge_group' && '3.10' }}
           - python-version: ${{ github.event_name == 'merge_group' && '3.11' }}
           - python-version: ${{ github.event_name == 'merge_group' && '3.12' }}
+          - python-version: ${{ github.event_name == 'workflow_dispatch' && '3.10' }}
           - python-version: ${{ github.event_name == 'workflow_dispatch' && '3.11' }}
           - python-version: ${{ github.event_name == 'workflow_dispatch' && '3.12' }}
             # clickhouse needs dependency update
@@ -782,7 +785,7 @@ jobs:
         markers:
           # - redshift
           - gx-redshift
-        python-version: ["3.10", "3.13"]
+        python-version: ["3.13"]
 
     steps:
       - name: Checkout