& operator launches commands differently in 7.3.0

### Prerequisites

- [X] Write a descriptive title.
- [X] Make sure you are able to repro it on the [latest released version](https://github.com/PowerShell/PowerShell/releases)
- [X] Search the existing issues.
- [X] Refer to the [FAQ](https://github.com/PowerShell/PowerShell/blob/master/docs/FAQ.md).
- [X] Refer to [Differences between Windows PowerShell 5.1 and PowerShell](https://docs.microsoft.com/powershell/scripting/whats-new/differences-from-windows-powershell).

### Steps to reproduce

[Program.cs.txt](https://github.com/PowerShell/PowerShell/files/10016244/Program.cs.txt)
[test.ps1.txt](https://github.com/PowerShell/PowerShell/files/10016245/test.ps1.txt)

1. Build C# app called blah.exe using Program.cs, make sure it's on the path.
2. Run `pwsh -f test.ps1` and observe the output.

### Expected behavior

```console
On 7.2.7:

Something will happen: working...
Something will happen: done.
--set
deployment.environment=blah
--set
deployment.region=blah
--set
deployment.image.repository=blah
```


### Actual behavior

```console
On 7.3.0:

Something will happen: working...
Something will happen: done.
--set
deployment.environment="blah"
--set
deployment.region="blah"
--set
deployment.image.repository="blah"
```


### Error details

_No response_

### Environment data

```powershell
Name                           Value
----                           -----
PSVersion                      7.3.0
PSEdition                      Core
GitCommitId                    7.3.0
OS                             Microsoft Windows 10.0.19044
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0
```


### Visuals

_No response_

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& operator launches commands differently in 7.3.0 #18568

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& operator launches commands differently in 7.3.0 #18568

Description

Prerequisites

Steps to reproduce

Expected behavior

Actual behavior

Error details

Environment data

Visuals

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

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