Bump eslint-plugin-jsonc from 2.20.1 to 2.21.0 (#501)

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] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: gstraccini[bot] <150967461+gstraccini[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -83,7 +83,7 @@
     "eslint": "^9.32.0",
     "eslint-plugin-github": "^6.0.0",
     "eslint-plugin-jest": "^29.0.1",
-    "eslint-plugin-jsonc": "^2.20.1",
+    "eslint-plugin-jsonc": "^2.21.0",
     "eslint-plugin-prettier": "^5.5.4",
     "globals": "^16.3.0",
     "jest": "^30.1.3",