Bump actions/checkout from 6 to 7 (#7)

Author: dependabot[bot]

.github/workflows/docc.yml

@@ -18,7 +18,7 @@ jobs:
   build:
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Setup Xcode
         uses: maxim-lobanov/setup-xcode@v1

.github/workflows/swift.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: macos-latest
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Setup Xcode version
         uses: maxim-lobanov/setup-xcode@v1
@@ -31,7 +31,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: SwiftLint
         uses: norio-nomura/action-swiftlint@3.2.1