add zizmor to scan workflows

.github/workflows/tests.yaml

@@ -5,6 +5,10 @@ on:
   push:
     branches: [main, stable]
     paths-ignore: ['docs/**', 'README.md']
+permissions: {}
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
 jobs:
   tests:
     name: ${{ matrix.name || matrix.python }}
@@ -27,6 +31,8 @@ jobs:
           - {name: Development Versions, python: '3.10', tox: tests-dev}
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
       - uses: astral-sh/setup-uv@61cb8a9741eeb8a550a1b8544337180c0fc8476b # v7.2.0
         with:
           enable-cache: true
@@ -34,11 +40,15 @@ jobs:
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: ${{ matrix.python }}
-      - run: uv run --locked tox run -e ${{ matrix.tox || format('py{0}', matrix.python) }}
+      - run: uv run --locked tox run
+        env:
+          TOX_ENV: ${{ matrix.tox || format('py{0}', matrix.python) }}
   typing:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
       - uses: astral-sh/setup-uv@61cb8a9741eeb8a550a1b8544337180c0fc8476b # v7.2.0
         with:
           enable-cache: true