Bump actions/checkout from 6.0.2 to 7.0.0 (#3155)

Bumps [actions/checkout](https://github.com/actions/checkout) from 6.0.2 to 7.0.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@de0fac2...9c091bb)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 7.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/check-formatting.yml

@@ -31,7 +31,7 @@ jobs:
             race: ""
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
       - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c
         with:
           go-version: ${{ matrix.go-version }}

.github/workflows/exercise-tests.yml

@@ -32,7 +32,7 @@ jobs:
 
     steps:
       - run: git config --global core.autocrlf false
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
 
       - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c
         with:

.github/workflows/gotools.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-26.04
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
 
       - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c
         with:

.github/workflows/shellcheck.yml

@@ -8,6 +8,6 @@ jobs:
     runs-on: ubuntu-slim
     steps:
       - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
       - name: Run shellcheck
         uses: ludeeus/action-shellcheck@00cae500b08a931fb5698e11e79bfbd38e612a38

.github/workflows/stub-tests.yml

@@ -31,7 +31,7 @@ jobs:
             race: ""
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
       - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c
         with:
           go-version: ${{ matrix.go-version }}