userAssignedIdentities: type error on certain modules being deployed,

[jrspinella]

Describe the bug
type error on certain modules being deployed,

change all modules that use this:

var identity = identityType != 'None' ? {
type: identityType
userAssignedIdentities: !empty(userAssignedIdentities) ? userAssignedIdentities : {}
} : {}

to

var identity = identityType != 'None' ? {
type: identityType
userAssignedIdentities: !empty(userAssignedIdentities) ? userAssignedIdentities : null
} : null

This should fix all the type errors.

[OutKa5t]

Need to discuss with @jftl6y as this was changed because of compilation errors in PR 198