chore(deps): update actions/checkout action to v6.0.2 (gemini-cli-extensions#86)

Co-authored-by: Averi Kitsch <akitsch@google.com>

Author: renovate-bot

.github/workflows/sync-labels.yaml

@@ -29,7 +29,7 @@ jobs:
       issues: 'write'
       pull-requests: 'write'
     steps:
-      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: micnncim/action-label-syncer@3abd5ab72fda571e69fffd97bd4e0033dd5f495c # v1.3.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}