chore(deps): update actions/checkout action to v6.0.2

Author: anaconda-renovate[bot]

.github/workflows/tests.yml

@@ -12,7 +12,7 @@ jobs:
     name: Python ${{ matrix.python-version }}
     steps:
 
-    - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
     - name: Set up Python
       uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0