chore(deps): update actions/checkout action to v5

Author: anaconda-renovate[bot]

.github/workflows/tests.yml

@@ -12,7 +12,7 @@ jobs:
     name: Python ${{ matrix.python-version }}
     steps:
 
-    - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
 
     - name: Set up Python
       uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0