Parametrize husbpot_source name

[moreaupascal56]

Pull Request Are you a current Fivetran customer?

Pascal Moreau yousign What change(s) does this PR introduce?

Give the possibility to parametrize the source name, in my case another source is called hubspot (from a former integration process) and this is unclear with the default hubspot name here. It was easier to parametrize it in this package than changing the legacy name we want to keep for now. It may be useful for others.

Did you update the CHANGELOG?

• [ ] 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)

• [ ] Yes

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

• [ ] Yes, Issue/Feature [link bug/feature number here]
• [x] No

How did you test the PR changes?

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

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

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

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[moreaupascal56]

Hello ! I'd like to parametrize dbt freshness parameters as well but I'm planning to do it on another PR, I can do it here as well if you prefer.