Bump actions/checkout from 3.6.0 to 4.0.0

Closes #53483

GitOrigin-RevId: c1cb910
Change-Id: I66e543e1f9b7d784930cca736909dd0c327074e8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/325141
Commit-Queue: Alexander Thomas <athom@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>

.github/workflows/scorecards-analysis.yml

@@ -23,7 +23,7 @@ jobs:
 
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
         with:
           persist-credentials: false