Update actions/checkout digest to 08c6903

Author: renovate[bot]

.github/workflows/publish.yml

@@ -11,7 +11,7 @@ jobs:
     permissions:
       id-token: write
     steps:
-    - uses: actions/checkout@09d2acae674a48949e3602304ab46fd20ae0c42f
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
     - uses: actions/setup-node@v4
       with:
         node-version: 18

.github/workflows/test.yml

@@ -9,7 +9,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@09d2acae674a48949e3602304ab46fd20ae0c42f
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
     - uses: actions/setup-node@v4
       with:
         node-version: 22