Update actions/checkout digest to 08eba0b (#801)

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

Author: renovate[bot]

.github/workflows/benchmark.yaml

@@ -32,7 +32,7 @@ jobs:
             api.github.com:443
 
       - name: Checkout main branch
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4
         with:
           clean: true