Adjust join key on key word report

[jkokatjuhhavoila]

Are you a current Fivetran customer?

Jekaterina Kokatjuhha, interim Data Lead, getvoila What change(s) does this PR introduce?

Adjusted keyword report to leverage the stats ids as opposed to the history ids to have more accurate reporting. Did you update the CHANGELOG?

• [ x] Yes

Does this PR introduce a breaking change?

• [ ] Yes (please provide breaking change details below.)
• [ x] No (please provide an explanation as to how the change is non-breaking below.)

Did you update the dbt_project.yml files with the version upgrade (please leverage standard semantic versioning)? (In both your main project and integration_tests)

• [ x] Yes

Is this PR in response to a previously created Bug or Feature Request

• [X] Yes, Issue #40
• [] No

How did you test the PR changes?

• [ ] Buildkite
• [ x] Local (please provide additional testing details below)

Select which warehouse(s) were used to test the PR

• [x ] BigQuery
• [ ] Redshift
• [ ] Snowflake
• [ ] Postgres
• [ ] Databricks
• [ ] Other (provide details below)

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:dancer: **Feedback** We are so excited you decided to contribute to the Fivetran community dbt package! We continue to work to improve the packages and would greatly appreciate your [feedback](https://www.surveymonkey.com/r/DQ7K7WW) on our existing dbt packages or what you'd like to see next.

[jkokatjuhhavoila]

Tested, everything works as it should! Thank you!

[fivetran-joemarkiewicz]

Tested, everything works as it should! Thank you!

Sounds great, thanks for testing! I will kick off our internal merge and release process 😄