ci(action): update actions/checkout digest to e6d535c

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

Author: renovate[bot]

.github/workflows/test.yml

@@ -17,7 +17,7 @@ jobs:
           - 16
           - 18
     steps:
-      - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b
+      - uses: actions/checkout@e6d535c99c374d0c3f6d8cd8086a57b43c6c700a
       - name: Setup Node v${{ matrix.node_version }}
         uses: actions/setup-node@969bd2663942d722d85b6a8626225850c2f7be4b
         with:
@@ -37,7 +37,7 @@ jobs:
     steps:
       - run: exit 1
         if: ${{ needs.test_matrix.result != 'success' }}
-      - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b
+      - uses: actions/checkout@e6d535c99c374d0c3f6d8cd8086a57b43c6c700a
       - uses: actions/setup-node@969bd2663942d722d85b6a8626225850c2f7be4b
         with:
           node-version: 16