Update Invoke-CIPPRestMethod.ps1

[jonwbstr]

Add support for an array of hashtables.

To update the Hudu tenant mappings the body needs to be an array of hashtables.

$body = @{
	TenantId = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx";
	Tenant = "Contoso, LLC";
	TenantDomain = "contoso.onmicrosoft.com";
	IntegrationId = 1122;
	IntegrationName = "Contoso, LLC"
	},@{
	TenantId = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx";
	Tenant = "Acme, Inc";
	TenantDomain = "acmeinc.onmicrosoft.com";
	IntegrationId = 1122;
	IntegrationName = "Acme, Inc"
}
	
Invoke-CIPPRestMethod` -Endpoint '/api/ExecExtensionMapping' -method POST -Params @{AddMapping='Hudu'} -Body $body```

[kris6673]

lgtm
Thanks for the PR!