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/codeql.yml

@@ -31,7 +31,7 @@ jobs:
 
     steps:
       - name: ⬇ Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 

.github/workflows/debian.yml

@@ -50,7 +50,7 @@ jobs:
 
     steps:
       - name: ⬇ Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
           fetch-depth: 0  # Ensures all tags are fetched

.github/workflows/macos.yml

@@ -40,7 +40,7 @@ jobs:
 
     steps:
       - name: ⬇ Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
           fetch-depth: 0  # Ensures all tags are fetched

.github/workflows/nightly.yml

@@ -25,7 +25,7 @@ jobs:
     outputs:
       should_run: ${{ steps.check_latest_commit.outputs.code_changes_since_yesterday }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         id: checkout
 
       - name: ⬇ Check if latest commit is less than 1 day old
@@ -79,7 +79,7 @@ jobs:
     needs: [check, linux, macos, windows]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: 💾 Download artifacts
         uses: actions/download-artifact@v6

.github/workflows/push_pull.yml

@@ -62,7 +62,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: ⬇ Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: 🔧 Prepare
         run: |

.github/workflows/windows.yml

@@ -40,7 +40,7 @@ jobs:
 
     steps:
       - name: ⬇ Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
           fetch-depth: 0  # Ensures all tags are fetched