Fix minor typo

[jakemraz]

https://airflow.apache.org/docs/apache-airflow/stable/howto/set-up-database.html#setting-up-a-sqlite-database
There is a minor typo 'SQLIte', so I've fixed it to SQLite

Thanks!

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^ Add meaningful description above

[boring-cyborg]

Congratulations on your first Pull Request and welcome to the Apache Airflow community! If you have any issues or are unsure about any anything please check our Contribution Guide (https://github.com/apache/airflow/blob/main/CONTRIBUTING.rst)
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[boring-cyborg]

Awesome work, congrats on your first merged pull request!

[pierrejeambrun]

Thanks for your first contribution @jakemraz 🎉