chore: 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/build.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
       - name: Install Node.js
         uses: actions/setup-node@v6
         with:

.github/workflows/commitlint.yml

@@ -9,7 +9,7 @@ jobs:
   commitlint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           fetch-depth: 0
       - uses: actions/setup-node@v6

.github/workflows/linguist.yml

@@ -20,15 +20,15 @@ jobs:
       - name: Install PCRE development headers
         run: sudo apt update && sudo apt install -y libpcre3-dev
       - name: Checkout linguist repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           repository: github-linguist/linguist
           path: linguist
       - uses: actions/setup-go@v6
         with:
           go-version-file: "linguist/tools/grammars/go.mod"
       - name: Checkout vscode-hack
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           path: vscode-hack
       - name: Check Hack grammar

.github/workflows/release.yml

@@ -30,7 +30,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - uses: actions/setup-node@v6
         with:
           node-version: 24.x
@@ -45,7 +45,7 @@ jobs:
     needs: create-release
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - uses: actions/setup-node@v6
         with:
           node-version: 24.x