[Work 45] 장소 검색/주변 장소/역지오코딩을 카카오 로컬 API로 연동했습니다. - #30

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/