Revert "refactor: 통신 기술 스택 변경 (RestTemplate -> RestClient) 및 E2E 테스트 안정화"#255

jihukimme merged 1 commit intodevelopFlowWeaver/backend:developfrom

revert-249-refactor-rest-clientFlowWeaver/backend:revert-249-refactor-rest-clientCopy head branch name to clipboard