[FEATURE] Hubspot - Update validation logic to comply with breaking change

[malexanderlim]

As of April 7th, 2025, Hubspot will be enforcing validation rules on non-string property values - any values with leading or trailing spaces used to be accepted, but will result in a 400 in the future.

We should update our logic to trim the whitespace on either end before sending non-string property values to conform to their validation rules, and to ensure that users don't start hitting these errors as soon as this rule is live.

https://developers.hubspot.com/changelog/breaking-change-enhanced-validations-for-non-string-properties-in-hubspots-crmobject-apis?utm_campaign=App%20Partner%20Comms%202024&utm_medium=email&utm_content=337045292&utm_source=hs_email

[vunguyenhung]

Hi everyone, all test cases are passed! Ready for release!

Test report
https://vunguyenhung.notion.site/FEATURE-Hubspot-Update-validation-logic-to-comply-with-breaking-change-158bf548bb5e81f19eccc03c2a76332c