Update actions/checkout digest to 08eba0b

Author: renovate[bot]

.github/workflows/prettier-md.yml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Git checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4
         with:
           ref: ${{ github.head_ref }}