fix: don't enforce password lenght for sign in form because of LDAP

backend/src/auth/dto/authSignIn.dto.ts

@@ -1,8 +1,6 @@
-import { PickType } from "@nestjs/swagger";
 import { IsEmail, IsOptional, IsString } from "class-validator";
-import { UserDTO } from "src/user/dto/user.dto";
 
-export class AuthSignInDTO extends PickType(UserDTO, ["password"] as const) {
+export class AuthSignInDTO {
   @IsEmail()
   @IsOptional()
   email: string;
@@ -10,4 +8,7 @@ export class AuthSignInDTO extends PickType(UserDTO, ["password"] as const) {
   @IsString()
   @IsOptional()
   username: string;
+
+  @IsString()
+  password: string;
 }