Add password update

src/main/java/com/faf223/expensetrackerfaf/controller/auth/ChangePasswordRequest.java

@@ -0,0 +1,14 @@
+package com.faf223.expensetrackerfaf.controller.auth;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@Builder
+@AllArgsConstructor
+@NoArgsConstructor
+public class ChangePasswordRequest {
+    private String password;
+}