chore(deps): update actions/checkout digest to ff7abcd (#286)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/delta-typescript-graph.yml

@@ -10,7 +10,7 @@ jobs:
     name: Delta TypeScript Graph
     steps:
       - name: Checkout
-        uses: actions/checkout@8edcb1bdb4e267140fa742c62e395cd74f332709 # specify latest version
+        uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493 # specify latest version
       - uses: ysk8hori/[email protected] # specify latest version
         with:
           max-size: 100