build(deps): bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/build-appimage.yml

@@ -48,7 +48,7 @@ jobs:
     name: "🐧 AppImage Qt 5.15.2"
     steps:
       - name: "🧰 Checkout"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 

.github/workflows/build-deploy-release-image.yml

@@ -30,7 +30,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Log in to the Container registry
         uses: docker/login-action@3da7dc6e2b31f99ef2cb9fb4c50fb0971e0d0139

.github/workflows/build-deploy-webpage.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         # copy screenshots and changelog to webpage folder
       - run: cp ../screenshots src/.vuepress/public -R; cp ../CHANGELOG.md src/changelog.md
       - name: Set up QEMU

.github/workflows/build-nix.yml

@@ -48,7 +48,7 @@ jobs:
       - name: 🔧 Install devenv.sh
         run: nix profile add nixpkgs#devenv
       - name: 🧰 Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: 🚧 Build nix package
@@ -61,7 +61,7 @@ jobs:
       contents: read
     steps:
       - name: "📥 Checkout repository"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: "📦 Install Nix"
         uses: cachix/install-nix-action@v31
@@ -75,7 +75,7 @@ jobs:
           name: qownnotes-devenv
 
       - name: 🧰 Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 

.github/workflows/build-release-next.yml

@@ -46,7 +46,7 @@ jobs:
       upload_url: ${{ steps.create_release.outputs.upload_url }}
       release_id: ${{ steps.create_release.outputs.id }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set Env
         run: |
           export VERSION=$(cat version.h | sed 's/[^0-9,.]//g')
@@ -93,7 +93,7 @@ jobs:
     name: "🐧 AppImage Qt 5.15.2"
     steps:
       - name: "🧰 Checkout"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 
@@ -167,7 +167,7 @@ jobs:
 #    steps:
 #
 #      - name: '🧰 Checkout'
-#        uses: actions/checkout@v5
+#        uses: actions/checkout@v6
 #        with:
 #          submodules: recursive
 #

.github/workflows/build-release-qt6.yml

@@ -49,7 +49,7 @@ jobs:
       upload_url: ${{ steps.create_release.outputs.upload_url }}
       release_id: ${{ steps.create_release.outputs.id }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set Env
         run: |
           export VERSION=$(cat version.h | sed 's/[^0-9,.]//g')
@@ -99,7 +99,7 @@ jobs:
     name: "🐧 AppImage Ubuntu 22.04"
     steps:
       - name: "🧰 Checkout"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 
@@ -199,7 +199,7 @@ jobs:
     name: "🐧 Snap Ubuntu 18.04"
     steps:
       - name: "🧰 Checkout"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 
@@ -273,7 +273,7 @@ jobs:
     continue-on-error: true
     steps:
       - name: "🧰 Checkout"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 
@@ -353,7 +353,7 @@ jobs:
     continue-on-error: true
     steps:
       - name: "🧰 Checkout"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 

.github/workflows/build-release.yml

@@ -38,7 +38,7 @@ jobs:
       upload_url: ${{ steps.create_release.outputs.upload_url }}
       release_id: ${{ steps.create_release.outputs.id }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set Env
         run: |
           export VERSION=$(cat version.h | sed 's/[^0-9,.]//g')
@@ -85,7 +85,7 @@ jobs:
     name: "🐧 AppImage Qt 5.15.2"
     steps:
       - name: "🧰 Checkout"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 
@@ -174,7 +174,7 @@ jobs:
     name: "🐧 AppImage Qt 6.5.3"
     steps:
       - name: "🧰 Checkout"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 
@@ -255,7 +255,7 @@ jobs:
     name: "🐧 Snap Qt 5.15.2"
     steps:
       - name: "🧰 Checkout"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 
@@ -321,7 +321,7 @@ jobs:
       QT_VERSION: 6.9.1
     steps:
       - name: "🧰 Checkout"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 
@@ -404,7 +404,7 @@ jobs:
       QT_VERSION: 6.9.1
     steps:
       - name: "🧰 Checkout"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 
@@ -458,7 +458,7 @@ jobs:
       QT_VERSION: 5.15.2
     steps:
       - name: "🧰 Checkout"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 

.github/workflows/build-test.yml

@@ -104,7 +104,7 @@ jobs:
             qt-version: "5.15.2"
             experimental: false
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           submodules: true
 

.github/workflows/build-webpage.yml

@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - id: files
         uses: masesgroup/retrieve-changed-files@v3
         with:

.github/workflows/format-check.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 🧰 Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: ⚙️ Install Nix
         uses: cachix/install-nix-action@v31
         with: