chore(deps): update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/codetests.yml

@@ -10,7 +10,7 @@ jobs:
         os: [ubuntu, macos, windows]
     runs-on: ${{ matrix.os }}-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v5
         with:
           go-version: 'stable'
@@ -30,7 +30,7 @@ jobs:
     env:
       GOOS: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v5
         with:
           go-version: 'stable'
@@ -51,7 +51,7 @@ jobs:
     env:
       GOOS: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v5
         with:
           go-version: 'stable'

.github/workflows/release.yml

@@ -17,7 +17,7 @@ jobs:
     name: Make macOS DMG
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           # we need the whole thing so we can count commits.
           fetch-depth: '0'
@@ -52,7 +52,7 @@ jobs:
     env:
       GPG_SIGNING_KEY: ${{ secrets.GPG_SIGNING_KEY }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           # we need the whole thing so we can count commits.
           fetch-depth: '0'
@@ -173,7 +173,7 @@ jobs:
     name: Deploy ArchLinux AUR
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: '0'
       - name: Deploy Arch AUR
@@ -194,7 +194,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3