remove check for not empty ssh passphrase to avoid validation error in case when any logic is missed on FE side and BE receives empty string

Author: Artem

redisinsight/api/src/modules/ssh/models/ssh-options.ts

@@ -67,7 +67,6 @@ export class SshOptions {
   })
   @Expose()
   @IsString({ always: true })
-  @IsNotEmpty()
   @IsOptional()
   passphrase?: string;
 }