New-AzFirewallPolicyApplicationRule Forces Protocol to Https:443

### Description

Currently when running New-AzFirewallPolicyApplicationRule -Protocol "Http:80". It is forced to use FQDNTag and gets forced into Https protocol

Because FQDN tag is required https is always injected

https://github.com/Azure/azure-powershell/blob/3a3d8b09636473bf109121175a41131a5f113f1a/src/Network/Network/AzureFirewallPolicy/ApplicationRuleCondition/NewAzureFirewallPolicyApplicationRuleCommand.cs#L162

### Issue script & Debug output

```PowerShell
 bewaters  $apprule = New-AzFirewallPolicyApplicationRule -Name "rule" -SourceIpGroup $ipg.Id -WebCategory "Games" -Protocol "Http:80" -FqdnTag "HDInsight"
 bewaters  $appRule

SourceAddresses :
TargetFqdns :
FqdnTags : {HDInsight}
Protocols : {Microsoft.Azure.Commands.Network.Models.PSAzureFirewallPolicyApplicationRuleProtocol}
SourceIpGroups : {/subscriptions/e7eb2257-46e4-4826-94df-153853fea38f/resourcegroups/bewatersrepro/providers/Microsoft.Network/ipGroups/repro}
WebCategories : {Games}
TargetUrls :
TerminateTLS :
HttpHeadersToInsert :
Description :
ProtocolsText : [
{
"protocolType": "Https",
"port": 443
}
]
SourceAddressesText : null
SourceIpGroupsText : [
"/subscriptions/e7eb2257-46e4-4826-94df-153853fea38f/resourcegroups/bewatersrepro/providers/Microsoft.Network/ipGroups/repro"
]
TargetFqdnsText : null
FqdnTagsText : [
"HDInsight"
]
WebCategoriesText : [
"Games"
]
TargetUrlsText : null
HttpHeadersToInsertText : null
Name : rule
RuleType : ApplicationRule
```

### Environment data

```PowerShell
Name Value
---- -----
PSVersion 5.1.26100.4768
PSEdition Desktop
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 10.0.26100.4768
CLRVersion 4.0.30319.42000
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
```

### Module versions

```PowerShell
Get-Module Az.Network

ModuleType Version Name ExportedCommands
---------- ------- ---- ----------------
Script 7.19.1 Az.Network
```

### Error output

```PowerShell

```

Start with src/Network/Network/AzureFirewallPolicy/ApplicationRuleCondition/NewAzureFirewallPolicyApplicationRuleCommand.cs around line 162 and reproduce the issue with the PowerShell command shown. Trace how the protocol and FQDN tag are combined; done means specifying Http:80 preserves Http:80 instead of producing Https:443.

Written by the indexing model from the issue text.