chore(deps): bump actions/checkout from 4.2.2 to 7.0.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.2.2 to 7.0.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](11bd71901b...9c091bb21b)

---
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>

.github/workflows/agent-team-apply-verify.yml

@@ -624,7 +624,7 @@ jobs:
             files.pythonhosted.org:443
 
       - name: Checkout base repo (clean ref; patch applied on top after)
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           # Checkout carries NO token into the working tree usable for writes —
           # this job's permissions are contents:read. persist-credentials:false