Bump actions/checkout from 4.1.5 to 4.1.6

.github/workflows/engine-cp.yml

@@ -30,7 +30,7 @@ jobs:
         run: |
           echo "COMMIT_SHA=$(echo ${{ github.event.pull_request.merge_commit_sha }})" >> $GITHUB_ENV
       - name: Checkout Flutter Engine Repo
-        uses: actions/checkout@44c2b7a8a4ea60a981eaca3cf939b5f4305c123b
+        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
         with:
           repository: flutteractionsbot/engine
           path: engine

.github/workflows/scorecards-analysis.yml

@@ -22,7 +22,7 @@ jobs:
       id-token: write
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@44c2b7a8a4ea60a981eaca3cf939b5f4305c123b
+        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
         with:
           persist-credentials: false
       - name: "Run analysis"

.github/workflows/third_party_scan.yml

@@ -21,7 +21,7 @@ jobs:
       contents: read
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@44c2b7a8a4ea60a981eaca3cf939b5f4305c123b
+        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
         with:
           persist-credentials: false
       - name: "setup python"