fix: Fix --exempt-from-2fa flag in create and update users and commands

[arjankowski]

In users update and create command we had bad field mapping.
Instead of using the is_exempt_from_login_verification field we had is_exempt_login_verification and as a result this parameter doesn't have any impact.

As a reference I'm putting here link for this our public docs:
https://developer.box.com/reference/post-users/#param-is_exempt_from_login_verification

[coveralls]

Pull Request Test Coverage Report for Build 18688359721

Details

• 2 of 2 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 85.515%

---

Totals
Change from base Build 18501508408:	0.0%
Covered Lines:	4596
Relevant Lines:	5183

---

💛 - Coveralls