Remove wildcard support on Get-EXOCasMailbox.md

[dariomws]

https://github.com/MicrosoftDocs/office-docs-powershell/issues/5644

Wildcard are not working on -Properties and -Propertysets parameters:

[opbld31]

Docs Build status updates of commit 5c10318:

🕙 Full build: the average full build time is 17 min(s) 53 sec(s), this is based on the last 1000 build(s) for this repository.

[opbld34]

Docs Build status updates of commit 5c10318:

✅ Validation status: passed

File	Status	Preview URL	Details
exchange/exchange-ps/exchange/Get-EXOCasMailbox.md	✅Succeeded	View (exchange-ps)

For more details, please refer to the build report.

Note: If you changed an existing file name or deleted a file, broken links in other files to the deleted or renamed file are listed only in the full build report.

[opbld33]

Docs Build status updates of commit 22478d1:

🕙 Full build: the average full build time is 17 min(s) 54 sec(s), this is based on the last 1000 build(s) for this repository.

[opbld32]

Docs Build status updates of commit 22478d1:

✅ Validation status: passed

File	Status	Preview URL	Details
exchange/exchange-ps/exchange/Get-EXOCasMailbox.md	✅Succeeded	View (exchange-ps)

For more details, please refer to the build report.

Note: If you changed an existing file name or deleted a file, broken links in other files to the deleted or renamed file are listed only in the full build report.