chore(deps): update actions/cache action to v6

Author: renovate[bot]

.github/actions/pre-commit-setup/action.yml

@@ -8,7 +8,7 @@ description: Prepare pre-commit environment
 runs:
   using: composite
   steps:
-  - uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae   # v5.0.5
+  - uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8   # v6.0.0
     with:
       path: |
         ~/.cache/prek