🩹 [Patch]: Add installation of PSCustomObject on Test-ModuleLocal (#166)

## Description

This pull request updates the `.github/workflows/Test-ModuleLocal.yml`
file to optimize module loading during Pester tests by installing a
required PowerShell resource.

Workflow optimization:

*
[`.github/workflows/Test-ModuleLocal.yml`](diffhunk://#diff-bc9fc4fcc46bb3f5c486f48b3708cb239d73c94b983b4e72815d093825c94581R134):
Added a step to install the `PSCustomObject` module from the `PSGallery`
repository to streamline module loading in Pester.

## Type of change

<!-- Use the check-boxes [x] on the options that are relevant. -->

- [ ] 📖 [Docs]
- [ ] 🪲 [Fix]
- [x] 🩹 [Patch]
- [ ] ⚠️ [Security fix]
- [ ] 🚀 [Feature]
- [ ] 🌟 [Breaking change]

## Checklist

<!-- Use the check-boxes [x] on the options that are relevant. -->

- [ ] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas

Author: MariusStorhaug

.github/workflows/Test-ModuleLocal.yml

@@ -131,4 +131,5 @@ jobs:
           Run_Path: ${{ steps.import-module.outputs.path }}
           WorkingDirectory: ${{ inputs.WorkingDirectory }}
           Prescript: | # This is to speed up module loading in Pester.
+            Install-PSResource -Repository PSGallery -TrustRepository -Name PSCustomObject
             Import-Module -Name '${{ steps.import-module.outputs.name }}' -RequiredVersion 999.0.0