🪲 [Fix]: Fix coverage percent target handling when not provided (#32)

## Description

This pull request includes a small change to the `scripts/init.ps1`
file. The change ensures that the `CoveragePercentTarget` parameter is
properly checked for null or empty values before being cast to a
decimal.

*
[`scripts/init.ps1`](diffhunk://#diff-f47ceebe9ade2bb55cede031de8267e9c87b09336a93fcd557c02c1f488554b6L118-R119):
Modified the assignment of `CoveragePercentTarget` to include a check
for null or empty values before casting to a decimal.

## Type of change

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

- [ ] 📖 [Docs]
- [x] 🪲 [Fix]
- [ ] 🩹 [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

scripts/init.ps1

@@ -115,7 +115,8 @@ LogGroup 'Init - Load configuration - Action overrides' {
             Path                  = $inputs.CodeCoverage_Path
             ExcludeTests          = [string]::IsNullOrEmpty($inputs.CodeCoverage_ExcludeTests) ? $null : $inputs.CodeCoverage_ExcludeTests -eq 'true'
             RecursePaths          = [string]::IsNullOrEmpty($inputs.CodeCoverage_RecursePaths) ? $null : $inputs.CodeCoverage_RecursePaths -eq 'true'
-            CoveragePercentTarget = [decimal]$inputs.CodeCoverage_CoveragePercentTarget
+            CoveragePercentTarget = [string]::IsNullOrEmpty($inputs.CodeCoverage_CoveragePercentTarget) ?
+            $null : [decimal]$inputs.CodeCoverage_CoveragePercentTarget
             UseBreakpoints        = [string]::IsNullOrEmpty($inputs.CodeCoverage_UseBreakpoints) ?
             $null : $inputs.CodeCoverage_UseBreakpoints -eq 'true'
             SingleHitBreakpoints  = [string]::IsNullOrEmpty($inputs.CodeCoverage_SingleHitBreakpoints) ?