build(deps-dev): bump jest in the jest-core group across 1 directory

Bumps the jest-core group with 1 update in the / directory: [jest](https://github.com/jestjs/jest/tree/HEAD/packages/jest).


Updates `jest` from 30.2.0 to 30.3.0
- [Release notes](https://github.com/jestjs/jest/releases)
- [Changelog](https://github.com/jestjs/jest/blob/main/CHANGELOG.md)
- [Commits](https://github.com/jestjs/jest/commits/v30.3.0/packages/jest)

---
updated-dependencies:
- dependency-name: jest
  dependency-version: 30.3.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: jest-core
...

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

Author: dependabot[bot]

package.json

@@ -32,7 +32,7 @@
     "@types/node": "^25.6.0",
     "eslint": "^8.57.1",
     "eslint-plugin-jest": "^29.15.2",
-    "jest": "^30.2.0",
+    "jest": "^30.3.0",
     "jest-environment-jsdom": "^30.2.0",
     "jest-fetch-mock": "^3.0.3",
     "prettier": "^3.8.3",
@@ -45,12 +45,12 @@
     "typescript": "5.9.3"
   },
   "resolutions": {
-    "jest": "^30.2.0",
+    "jest": "^30.3.0",
     "jest-circus": "^30.2.0",
     "node-fetch": "^2.6.7"
   },
   "overrides": {
-    "jest": "^30.2.0",
+    "jest": "^30.3.0",
     "jest-circus": "^30.2.0",
     "node-fetch": "^2.6.7"
   },