chore(actions): bump actions/checkout from 6 to 7

Bumps [actions/checkout](https://github.com/actions/checkout) from 6 to 7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v6...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/codeql.yml

@@ -29,7 +29,7 @@ jobs:
     steps:
       # ── 1. Checkout ────────────────────────────────────────────
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       # ── 2. Node.js ─────────────────────────────────────────────
       - name: Set up Node.js

.github/workflows/dependency-review.yml

@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Dependency Review
         uses: actions/dependency-review-action@v5

.github/workflows/deploy.yml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: ⬇️ Checkout Repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0
 

.github/workflows/release.yml

@@ -52,7 +52,7 @@ jobs:
       # Checkout des Tags (falls vorhanden) bzw. des angegebenen Branches (für neue Tags).
       # fetch-depth: 0 holt komplette History + alle Tags.
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           ref: ${{ inputs.ref || github.ref }}
           fetch-depth: 0

.github/workflows/secret-scan.yml

@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           # Fetch full history so TruffleHog can scan all commits in the push/PR
           fetch-depth: 0