refactor/OPS-388 : 다건삭제 DELETE 테스트 케이스 수정

Author: yonggi1234

src/test/java/org/tuna/zoopzoop/backend/domain/space/archive/controller/SpaceArchiveDataSourceControllerTest.java

@@ -190,7 +190,7 @@ void delete_many_ok() throws Exception {
                 "dataSourceId", List.of(a.getId(), b.getId())
         ));
 
-        mockMvc.perform(post("/api/v1/space/{spaceId}/archive/datasources/delete", spaceId)
+        mockMvc.perform(delete("/api/v1/space/{spaceId}/archive/datasources/delete", spaceId)
                         .contentType(MediaType.APPLICATION_JSON)
                         .content(body))
                 .andExpect(status().isOk())