Bump actions/checkout from 4.1.0 to 4.1.1

Closes #165

GitOrigin-RevId: b183808
Change-Id: I0f04e3bf09c09612c4701420db10cbdff2937bd0
Reviewed-on: https://dart-review.googlesource.com/c/homebrew-dart/+/333282
Reviewed-by: Alexander Thomas <athom@google.com>
Commit-Queue: Alexander Thomas <athom@google.com>

.github/workflows/test-package.yml

@@ -20,7 +20,7 @@ jobs:
       matrix:
         sdk: [dev, stable]
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
       - uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d
         with:
           sdk: ${{ matrix.sdk }}