chore(deps): 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

@@ -22,7 +22,7 @@ jobs:
       matrix:
         language: [python]
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v4

.github/workflows/dependency-review.yml

@@ -13,7 +13,7 @@ jobs:
     name: Audit dependencies
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - uses: actions/dependency-review-action@v5
         with:
           fail-on-severity: high

.github/workflows/drift-check.yml

@@ -49,7 +49,7 @@ jobs:
       issues: write
     steps:
       - name: Checkout meta-repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Run drift check
         id: drift

.github/workflows/label-sync.yml

@@ -13,7 +13,7 @@ jobs:
     name: Auto-label by path
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Get changed files
         id: changed

.github/workflows/pages.yml

@@ -24,7 +24,7 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Copy registry into docs for client-side fetch
         run: cp registry.json docs/registry.json

.github/workflows/release.yml

@@ -23,7 +23,7 @@ jobs:
       tag: ${{ steps.compare.outputs.tag }}
       previous-tag: ${{ steps.compare.outputs.previous-tag }}
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           fetch-depth: 0
 
@@ -112,7 +112,7 @@ jobs:
       contents: write
       pull-requests: read
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           fetch-depth: 0
 

.github/workflows/sync.yml

@@ -21,7 +21,7 @@ jobs:
       contents: write
       pull-requests: write
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-python@v6
         with:

.github/workflows/validate.yml

@@ -14,7 +14,7 @@ jobs:
     name: Validate registry.json
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Validate JSON syntax
         run: python3 -c "import json; json.load(open('registry.json'))"
@@ -80,7 +80,7 @@ jobs:
     name: Validate docs site
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Check docs/index.html exists
         run: test -f docs/index.html
@@ -89,7 +89,7 @@ jobs:
     name: Validate scaffold
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-python@v6
         with:
@@ -236,7 +236,7 @@ jobs:
     name: Registry sync check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-python@v6
         with:
@@ -249,7 +249,7 @@ jobs:
     name: Public-repo safety scan
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: No business email leak
         run: |
@@ -289,7 +289,7 @@ jobs:
     if: github.event_name == 'pull_request'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           fetch-depth: 0
 
@@ -352,7 +352,7 @@ jobs:
     name: Run drift_check tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-python@v6
         with: