chore: bump sinon from 20.0.0 to 21.0.0 (#351)

Bumps [sinon](https://github.com/sinonjs/sinon) from 20.0.0 to 21.0.0.
- [Release notes](https://github.com/sinonjs/sinon/releases)
- [Changelog](https://github.com/sinonjs/sinon/blob/main/docs/changelog.md)
- [Commits](https://github.com/sinonjs/sinon/commits)

---
updated-dependencies:
- dependency-name: sinon
  dependency-version: 21.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

packages/blockstore-s3/package.json

@@ -157,6 +157,6 @@
     "aegir": "^47.0.16",
     "interface-blockstore-tests": "^7.0.0",
     "p-defer": "^4.0.1",
-    "sinon": "^20.0.0"
+    "sinon": "^21.0.0"
   }
 }

packages/datastore-s3/package.json

@@ -157,6 +157,6 @@
     "aegir": "^47.0.16",
     "interface-datastore-tests": "^6.0.0",
     "p-defer": "^4.0.1",
-    "sinon": "^20.0.0"
+    "sinon": "^21.0.0"
   }
 }