fix: add missing `is_latest_version` filter in `linkedin_ads__url_report` CTE

[aleix-cd]

Are you a current Fivetran customer?

Yes. Aleix Cubel, Analytics Engineer at Capdesk from Carta

What change(s) does this PR introduce?

Adding a missing is_latest_version filter within the linkedin_ads__url_report model (specifically, in the creative CTE)

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.) The is_latest_version field is available in the stg_linkedin_ads__creative_history model, and will in fact prevent a test failure (dbt_utils_unique_combination_of_columns_linkedin_ads__url_report_date_day__creative_id__campaign_id__campaign_group_id__account_id).

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-25
• [ ] No

How did you test the PR changes?

• [ ] Buildkite
• [ ] Local (please provide additional testing details below)
• [X] Didn't test it locally

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

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

Provide an emoji that best describes your current mood

: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.

[aleix-cd]

Thanks so much for opening this PR @aleix-cd 🏅

This change looks good to me! Before this will be good to approve and merge there are two final updates we will need to apply to the package:

• [ ] Update the dbt version to be 0.6.1 within the dbt_project.yml and integration_tests/dbt_project.yml files.
• [ ] Create a new CHANGELOG entry for v0.6.1 in the same format as the other entries. You will want to add a bugfix section detailing the update you applied here and a link to your PR. You can also add a Contributor section to highlight your contribution 😄

Let me know if you need help with any of these!

This has now been done, @fivetran-joemarkiewicz. Let me know if you feel there's anything missing!