chore(deps-dev): bump typescript-eslint from 8.20.0 to 8.21.0

Bumps [typescript-eslint](/~https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/typescript-eslint) from 8.20.0 to 8.21.0.
- [Release notes](/~https://github.com/typescript-eslint/typescript-eslint/releases)
- [Changelog](/~https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/typescript-eslint/CHANGELOG.md)
- [Commits](/~https://github.com/typescript-eslint/typescript-eslint/commits/v8.21.0/packages/typescript-eslint)

---
updated-dependencies:
- dependency-name: typescript-eslint
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -189,7 +189,7 @@
     "teamcity-service-messages": "^0.1.14",
     "terser-webpack-plugin": "^5.3.11",
     "typescript": "~5.7.3",
-    "typescript-eslint": "^8.20.0",
+    "typescript-eslint": "^8.21.0",
     "vitest": "^3.0.2",
     "vitest-teamcity-reporter": "^0.3.1",
     "wallaby-webpack": "^3.9.16",