Bump actions/checkout from 4.1.5 to 4.1.6

Closes #55777

GitOrigin-RevId: 532a4e4
Change-Id: Ida871bd0a17421be9fb1cdf8f876e5693e83f79e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/367142
Reviewed-by: Alexander Thomas <[email protected]>

Author: dependabot[bot]

.github/workflows/scorecards-analysis.yml

@@ -23,7 +23,7 @@ jobs:
 
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@44c2b7a8a4ea60a981eaca3cf939b5f4305c123b
+        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
         with:
           persist-credentials: false
 

.github/workflows/third-party-deps-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"