build(deps-dev): bump eslint-plugin-jsonc from 2.20.1 to 2.21.0

Bumps [eslint-plugin-jsonc](https://github.com/ota-meshi/eslint-plugin-jsonc) from 2.20.1 to 2.21.0.
- [Release notes](https://github.com/ota-meshi/eslint-plugin-jsonc/releases)
- [Changelog](https://github.com/ota-meshi/eslint-plugin-jsonc/blob/master/CHANGELOG.md)
- [Commits](ota-meshi/eslint-plugin-jsonc@v2.20.1...v2.21.0)

---
updated-dependencies:
- dependency-name: eslint-plugin-jsonc
  dependency-version: 2.21.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -204,7 +204,7 @@
     "eslint-import-resolver-typescript": "^4.4.4",
     "eslint-plugin": "^1.0.1",
     "eslint-plugin-import": "^2.32.0",
-    "eslint-plugin-jsonc": "^2.20.1",
+    "eslint-plugin-jsonc": "^2.21.0",
     "eslint-plugin-markdownlint": "^0.9.0",
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-prettier": "^5.5.4",