chore(deps): update actions/checkout digest to 3b9b8c8 (#201)

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

Author: renovate[bot]

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

@@ -10,5 +10,5 @@ jobs:
     name: Delta TypeScript Graph
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # specify latest version
+        uses: actions/checkout@3b9b8c884f6b4bb4d5be2779c26374abadae0871 # specify latest version
       - uses: ysk8hori/delta-typescript-graph-action@v1.0.5 # specify latest version