message: fix(techdocs): remove unused imported module
diff: import { Entity, EntityName } from '@backstage/catalog-model';
  import { Config } from '@backstage/config';
  import aws, { Credentials } from 'aws-sdk';
  -import { ListObjectsV2Output, ManagedUpload } from 'aws-sdk/clients/s3';
  +import { ListObjectsV2Output } from 'aws-sdk/clients/s3';
  import { CredentialsOptions } from 'aws-sdk/lib/credentials';
  import express from 'express';
  import fs from 'fs-extra';
  