fix: overly restrictive organization pattern

[shazron]

Closes #230

IMS organization can be anything in Unicode BMP with a max of 255 characters.
The regex prevents leading or trailing whitespace characters.
Test on 5 chars max: https://regex101.com/r/IX4PYF/1

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[shazron]

codecov is down: https://status.codecov.io/
this PR builds and an admin can merge it regardless.

[moritzraho]

lgtm