build(deps-dev): bump the development-dependencies group across 1 directory with 2 updates (#312)

Bumps the development-dependencies group with 2 updates in the / directory: [postcss](https://github.com/postcss/postcss) and [ts-jest](https://github.com/kulshekhar/ts-jest).


Updates `postcss` from 8.5.6 to 8.5.8
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.5.6...8.5.8)

Updates `ts-jest` from 29.4.6 to 29.4.9
- [Release notes](https://github.com/kulshekhar/ts-jest/releases)
- [Changelog](https://github.com/kulshekhar/ts-jest/blob/main/CHANGELOG.md)
- [Commits](kulshekhar/ts-jest@v29.4.6...v29.4.9)

---
updated-dependencies:
- dependency-name: postcss
  dependency-version: 8.5.8
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: development-dependencies
- dependency-name: ts-jest
  dependency-version: 29.4.9
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: development-dependencies
...

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Author: dependabot[bot]

package-lock.json

@@ -34,10 +34,10 @@
     "@types/jest": "^30.0.0",
     "jest": "^30.2.0",
     "lint-staged": "^16.3.1",
-    "postcss": "^8.5.6",
+    "postcss": "^8.5.8",
     "prettier": "^3.8.1",
     "rimraf": "^6.1.3",
-    "ts-jest": "^29.4.6",
+    "ts-jest": "^29.4.9",
     "typescript": "^5.9.3"
   },
   "scripts": {