Merge pull request #18 from gitx/dependabot/github_actions/actions/checkout-4

Bump actions/checkout from 3 to 4

Author: hannesa2

.github/workflows/BuildPR.yml

@@ -12,7 +12,7 @@ jobs:
         xcode: [ Xcode_14.2.0, Xcode_13.4 ]
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
           submodules: true