⬆️ chore: bump actions/checkout from 4 to 6

.github/workflows/benchmarks.yml

@@ -24,7 +24,7 @@ jobs:
     if: github.event_name == 'push'
     runs-on: macos-15
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Swift
         uses: swift-actions/setup-swift@v2
@@ -66,7 +66,7 @@ jobs:
     if: github.event_name == 'pull_request'
     runs-on: macos-15
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0   # needed for the fallback git checkout of origin/main
 
@@ -158,7 +158,7 @@ jobs:
     if: github.event_name == 'workflow_dispatch'
     runs-on: macos-15
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Swift
         uses: swift-actions/setup-swift@v2
@@ -211,7 +211,7 @@ jobs:
     if: github.event_name == 'workflow_dispatch' || github.event_name == 'schedule'
     runs-on: macos-15
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Swift
         uses: swift-actions/setup-swift@v2

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
     name: runtime-5.4 (linux)
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: List versioned manifests
         run: ls -1 Package*.swift
@@ -52,7 +52,7 @@ jobs:
     name: tooling-5.6 (linux)
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: List versioned manifests
         run: ls -1 Package*.swift
@@ -91,7 +91,7 @@ jobs:
         # with the macOS 15.x SDK shipped on macos-15 runners (c_standard_library mismatch).
         os: [ubuntu-22.04]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Swift
         uses: swift-actions/setup-swift@v2
@@ -152,7 +152,7 @@ jobs:
         # with the macOS 15.x SDK shipped on macos-15 runners (c_standard_library mismatch).
         os: [ubuntu-22.04]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Swift
         uses: swift-actions/setup-swift@v2
@@ -256,7 +256,7 @@ jobs:
       matrix:
         os: [ubuntu-22.04, macos-15]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Swift
         uses: swift-actions/setup-swift@v2
@@ -387,7 +387,7 @@ jobs:
     name: Concurrency (TSan, ubuntu-22.04)
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Swift
         uses: swift-actions/setup-swift@v2
@@ -421,7 +421,7 @@ jobs:
     name: ios-simulator (macos-15)
     runs-on: macos-15
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Swift
         uses: swift-actions/setup-swift@v2

.github/workflows/codeql.yml

@@ -23,7 +23,7 @@ jobs:
       contents: read
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v4

.github/workflows/docc.yml

@@ -20,7 +20,7 @@ jobs:
     name: Build documentation
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Swift
         uses: swift-actions/setup-swift@v2

.github/workflows/fuzz.yml

@@ -25,7 +25,7 @@ jobs:
       matrix:
         target: [FuzzXMLParser, FuzzXMLDecoder]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Swift
         uses: swift-actions/setup-swift@v2
@@ -69,7 +69,7 @@ jobs:
     name: Typecheck fuzz harnesses
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Swift
         uses: swift-actions/setup-swift@v2

.github/workflows/lint.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: macos-15
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Cache SwiftLint
         id: cache-swiftlint

.github/workflows/release.yml

@@ -23,7 +23,7 @@ jobs:
        contains(github.event.pull_request.labels.*.name, 'autorelease: patch'))
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0