[Az.Bootstrapper] Install-AzProfile fails to resolve 'azureprofile.azureedge.net'

Similar to @bganapa's https://github.com/Azure/azurestack-powershell/issues/170


```Install-AzProfile -Profile 2020-09-01-hybrid -Force```
```powershell
Install-AzProfile -Profile 2020-09-01-hybrid -Force
Invoke-CommandWithRetry : The remote name could not be resolved: 'azureprofile.azureedge.net'
At C:\Program Files\WindowsPowerShell\Modules\Az.BootStrapper\1.0.1\Az.Bootstrapper.psm1:94 char:18
+ $WebResponse = Invoke-CommandWithRetry -ScriptBlock $ScriptBlock
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-CommandWithRetry], WebException
+ FullyQualifiedErrorId : WebCmdletWebResponseException,Invoke-CommandWithRetry

Cannot index into a null array.
At C:\Program Files\WindowsPowerShell\Modules\Az.BootStrapper\1.0.1\Az.Bootstrapper.psm1:108 char:3
+ $OnlineProfileMapETag = $WebResponse.Headers["ETag"]
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : InvalidOperation: (:) [], RuntimeException + FullyQualifiedErrorId : NullArray ConvertFrom-Json : Cannot bind argument to parameter 'InputObject' because it is null. At C:\Program Files\WindowsPowerShell\Modules\Az.BootStrapper\1.0.1\Az.Bootstrapper.psm1:162 char:38 + $OnlineProfileMap = $WebResponse | ConvertFrom-Json + ~~~~~~~~~~~~~~~~ + CategoryInfo : InvalidData: (:) [ConvertFrom-Json], ParameterBindingValidationException + FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.ConvertFromJsonCommand Get-Member : You must specify an object for the Get-Member cmdlet. At C:\Program Files\WindowsPowerShell\Modules\Az.BootStrapper\1.0.1\Az.Bootstrapper.psm1:808 char:33
+ ... llProfiles = ($ProfileMap | Get-Member -MemberType NoteProperty).Name
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : CloseError: (:) [Get-Member], InvalidOperationException
+ FullyQualifiedErrorId : NoObjectInGetMember,Microsoft.PowerShell.Commands.GetMemberCommand

New-Object : A constructor was not found. Cannot find an appropriate constructor for type System.Management.Automation.ValidateSetAttribute.
At C:\Program Files\WindowsPowerShell\Modules\Az.BootStrapper\1.0.1\Az.Bootstrapper.psm1:814 char:31
+ ... Attribute = New-Object -Type System.Management.Automation.ValidateSet ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (:) [New-Object], PSArgumentException
+ FullyQualifiedErrorId : CannotFindAppropriateCtor,Microsoft.PowerShell.Commands.NewObjectCommand

Invoke-CommandWithRetry : The remote name could not be resolved: 'azureprofile.azureedge.net'
At C:\Program Files\WindowsPowerShell\Modules\Az.BootStrapper\1.0.1\Az.Bootstrapper.psm1:94 char:18
+ $WebResponse = Invoke-CommandWithRetry -ScriptBlock $ScriptBlock
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-CommandWithRetry], WebException
+ FullyQualifiedErrorId : WebCmdletWebResponseException,Invoke-CommandWithRetry

Cannot index into a null array.
At C:\Program Files\WindowsPowerShell\Modules\Az.BootStrapper\1.0.1\Az.Bootstrapper.psm1:108 char:3
+ $OnlineProfileMapETag = $WebResponse.Headers["ETag"]
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [], RuntimeException
+ FullyQualifiedErrorId : NullArray

ConvertFrom-Json : Cannot bind argument to parameter 'InputObject' because it is null.
At C:\Program Files\WindowsPowerShell\Modules\Az.BootStrapper\1.0.1\Az.Bootstrapper.psm1:162 char:38
+ $OnlineProfileMap = $WebResponse | ConvertFrom-Json
+ ~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidData: (:) [ConvertFrom-Json], ParameterBindingValidationException
+ FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.ConvertFromJsonCommand

Get-Member : You must specify an object for the Get-Member cmdlet.
At C:\Program Files\WindowsPowerShell\Modules\Az.BootStrapper\1.0.1\Az.Bootstrapper.psm1:808 char:33
+ ... llProfiles = ($ProfileMap | Get-Member -MemberType NoteProperty).Name
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : CloseError: (:) [Get-Member], InvalidOperationException
+ FullyQualifiedErrorId : NoObjectInGetMember,Microsoft.PowerShell.Commands.GetMemberCommand

New-Object : A constructor was not found. Cannot find an appropriate constructor for type System.Management.Automation.ValidateSetAttribute.
At C:\Program Files\WindowsPowerShell\Modules\Az.BootStrapper\1.0.1\Az.Bootstrapper.psm1:814 char:31
+ ... Attribute = New-Object -Type System.Management.Automation.ValidateSet ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (:) [New-Object], PSArgumentException
+ FullyQualifiedErrorId : CannotFindAppropriateCtor,Microsoft.PowerShell.Commands.NewObjectCommand

Install-Module : A parameter cannot be found that matches parameter name 'AllowPrerelease'.
At C:\Program Files\WindowsPowerShell\Modules\Az.BootStrapper\1.0.1\Az.Bootstrapper.psm1:568 char:104
+ ... sion -AllowClobber -Repository $script:BootStrapRepo -AllowPrerelease
+ ~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (:) [Install-Module], ParameterBindingException
+ FullyQualifiedErrorId : NamedParameterNotFound,Install-Module

```


This breaks Azure Stack Hub installation of modules as per https://learn.microsoft.com/en-us/azure-stack/operator/powershell-install-az-module?view=azs-2501#connected-install-with-internet-connectivity

Also breaks getting the module versions:
```Get-AzModule -Profile "2020-09-01-hybrid" -Module "Az.Storage"```

```powershell
$VerbosePreference = "continue"
PS C:\Users\cblack> Get-AzModule -Profile "2020-09-01-hybrid" -Module "Az.Storage"
VERBOSE: Updating profiles
VERBOSE: Requested HTTP/1.1 GET with 0-byte payload
VERBOSE: Waiting 3 second(s) before attempting again
VERBOSE: Requested HTTP/1.1 GET with 0-byte payload
VERBOSE: Waiting 3 second(s) before attempting again
VERBOSE: Requested HTTP/1.1 GET with 0-byte payload
Invoke-CommandWithRetry: No such host is known.
InvalidOperation: Cannot index into a null array.
ConvertFrom-Json: Cannot bind argument to parameter 'InputObject' because it is null.
Get-Member: You must specify an object for the Get-Member cmdlet.
New-Object: A constructor was not found. Cannot find an appropriate constructor for type System.Management.Automation.ValidateSetAttribute.
VERBOSE: Getting the version of Az.Storage from 2020-09-01-hybrid
VERBOSE: Populating RepositorySourceLocation property for module Az.Storage.
2.6.2
```