Add S3Bucket for mypy

[kimdwkimdw]

Fixing Simple mypy typing for S3Bucket.

For example, this code cannot pass mypy typing because of get_bucket return simple 'object'

airflow/airflow/providers/amazon/aws/hooks/s3.py

Line 301 in df74553

def get_bucket(self, bucket_name: str | None = None) -> object:

from airflow.providers.amazon.aws.hooks.s3 import S3Hook

s3_hook = S3Hook(aws_conn_id=aws_s3_conn_id, verify=verify)
objects = s3_hook.get_bucket(self.s3_bucket).objects

---

^ Add meaningful description above

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[boring-cyborg]

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[vincbeck]

Please run static checks, they are currently failing. You can either use Breeze or pre-commit, everything should be explained in the README I linked

[kimdwkimdw]

@vincbeck Thanks. I applied pre-commit and rebase on current main branch.
(specifically modified from black)

[vincbeck]

Nice! Thanks for doing the change!

[boring-cyborg]

Awesome work, congrats on your first merged pull request! You are invited to check our Issue Tracker for additional contributions.