Update actions/checkout action to v7 (#2828)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/bench-compare.yml

@@ -17,7 +17,7 @@ jobs:
       contents: read
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         id: checkout
         with:
           # Full history so the script can git-archive the base branch.

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
   self-lint:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v7
     - uses: pnpm/action-setup@v6
       with:
         run_install: false
@@ -34,7 +34,7 @@ jobs:
         node-version: [20.x, 22.x, 24.x]
 
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v7
     - uses: pnpm/action-setup@v6
       with:
         run_install: false

.github/workflows/codeql-analysis.yml

@@ -39,7 +39,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/publish.yml

@@ -26,7 +26,7 @@ jobs:
       attestations: write
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - uses: pnpm/action-setup@v6
       - uses: actions/setup-node@v6
         with: