Merge pull request #219 from FunD-StockProject/chore/auth-nickname

Chore: nickname 엔드포인트 public api로 전환

Author: MuuiGong

src/main/java/com/fund/stockProject/global/config/SecurityConfig.java

@@ -55,6 +55,7 @@ public class SecurityConfig {
             "/auth/logout",
             "/auth/reissue",
             "/auth/find-email",
+            "/auth/nickname",
             "/auth/reset-password",
             "/auth/reset-password/confirm",
             "/auth/oauth2/naver",