deps: update actions/github-script action to v7 (#1311)

[![Mend Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com) This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [actions/github-script](https://togithub.com/actions/github-script) | action | major | `v6` -> `v7` | --- ### Release Notes <details> <summary>actions/github-script (actions/github-script)</summary> ### [`v7`](https://togithub.com/actions/github-script/compare/v6...v7) [Compare Source](https://togithub.com/actions/github-script/compare/v6...v7) </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://developer.mend.io/github/googleapis/java-storage-nio). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy44MS4zIiwidXBkYXRlZEluVmVyIjoiMzcuODEuMyIsInRhcmdldEJyYW5jaCI6Im1haW4ifQ==-->

Author: renovate-bot

.github/workflows/approve-readme.yaml

@@ -21,7 +21,7 @@ jobs:
  runs-on: ubuntu-latest
  if: github.repository_owner == 'googleapis' && github.head_ref == 'autosynth-readme'
  steps:
- - uses: actions/github-script@v6
+ - uses: actions/github-script@v7
  with:
  github-token: ${{secrets.YOSHI_APPROVER_TOKEN}}
  script: |