Clean up zizmor workflow style to match other workflows

Author: dduugg

.github/workflows/zizmor.yml

@@ -16,10 +16,8 @@ jobs:
       contents: read
       actions: read
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
         with:
           persist-credentials: false
-
       - name: Run zizmor
         uses: zizmorcore/zizmor-action@b1d7e1fb5de872772f31590499237e7cce841e8e # v0.5.3