Rename 'S3' hook name to 'Amazon S3'

[treyyi]

PR to produce more intuitive and organized name for Amazon S3 hook. This will align better with other naming of Amazon hooks.

Fixes for request at #21987 to make the hook naming consistent with other AWS hooks

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[boring-cyborg]

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[mik-laj]

LGTM

[github-actions]

The PR is likely OK to be merged with just subset of tests for default Python and Database versions without running the full matrix of tests, because it does not modify the core of Airflow. If the committers decide that the full tests matrix is needed, they will add the label 'full tests needed'. Then you should rebase to the latest main or amend the last commit of the PR, and push it with --force-with-lease.

[boring-cyborg]

Awesome work, congrats on your first merged pull request!