fix: Correct country typo🇺🇦

[apexDev37]

Description:
Simple edit suggestion to fix a typo in the config.yaml file for the django-app edx-cookiecutter. Change the descriptive comment for the locale, uk from "Ukranian" to "Ukrainian", which is the correct demonym for people or things related to Ukraine 🇺🇦.

Additional:

• This typo error was raised by codespell, a tool designed to catch common misspellings in code, running as a pre-commit hook in the code-quality tool, pre-commit.
• For more context, this occurred in my local development environment while building an Open edX, Django app plugin.

Here is the error output from pre-commit:

codespell................................................................Failed
- hook id: codespell
- exit code: 65

openedx_plugin_greeting/conf/locale/config.yaml:75: Ukranian ==> Ukrainian

Recommendation:
Consider using the pre-commit automation tool to enable contributors to easily add early CI checks into their local dev environments on each commit.

Testing:
This PR does not introduce any code changes to the functional code of this repo.

Merge checklist:
Check off if complete or not applicable:

• [✔] Changelog record added
• [✔] Documentation updated (not only docstrings)
• [✔] Fixup commits are squashed away
• [✔] Unit tests added/updated
• [✔] Manual testing instructions provided
• [✔] Noted any: Concerns, dependencies, deadlines, tickets

[openedx-webhooks]

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