fix: database None error in spark.sql('use

[akmalsoliev]

Description

When database is not present in profiles.yml the code doesn't default to schema, adding condition that would use both.

Checklist

• I have signed the CLA
• I have run this code in development and it appears to resolve the stated issue
• This PR includes tests, or tests are not required/relevant for this PR
• I have updated the CHANGELOG.md and added information about my change to the "dbt-glue next" section.

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[yotahk]

Thanks for the contribution, please update CHANGELOG.md. It might conflict with your other PRs but it can be resolved easily.

[akmalsoliev]

Hey @yotahk,
As pre your last comment on self.credentials.database being set to None, I have completely removed the condition and made spark.sql("use schema rather than database. Also added a check condition that would raise an error if self.credentials.schema is not present. This shouldn't occur, however, would be helpful in future.

[akmalsoliev]

Hey @yotahk I believe that this PR is ready for a merge.

[yotahk]

LGTM

[yotahk]

Merged. Thanks for your patience!