Bump github/command from 1.3.0 to 2.0.0

Bumps [github/command](https://github.com/github/command) from 1.3.0 to 2.0.0.
- [Release notes](https://github.com/github/command/releases)
- [Commits](https://github.com/github/command/compare/v1.3.0...v2.0.0)

---
updated-dependencies:
- dependency-name: github/command
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/close-duplicates.yml

@@ -13,7 +13,7 @@ jobs:
   close_duplicates:
     runs-on: ubuntu-latest
     steps:
-      - uses: github/command@v1.3.0
+      - uses: github/command@v2.0.0
         id: command
         with:
           allowed_contexts: "issue"