import get_localzone_name if timezone not avaiable

[jinyangli34]

Description

get_localzone_name was added in tzlocal 4.0 and not available in older version.
Move the import to provide a workaround using older version of tzlocal

Non-technical explanation

Release notes

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* Fix some things. ({issue}`issuenumber`)

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[cla-bot]

Thank you for your pull request and welcome to our community. We could not parse the GitHub identity of the following contributors: jinyang_li.
This is most likely caused by a git client misconfiguration; please make sure to:

1. check if your git client is configured with an email to sign commits git config --list | grep email
2. If not, set it up using git config --global user.email [email protected]
3. Make sure that the git commit email is configured in your GitHub account settings, see https://github.com/settings/emails