fix lint (PSScriptAnalyzer) issues (#62)

#### 📖 Summary

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#### 📑 Test Plan

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- [x] Tested via Drone.io pipeline
- [ ] Custom test
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##### Details / Justification

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#### 📚 Additional Notes

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Co-authored-by: OCram85 <marco.blessing@googlemail.com>
Reviewed-on: #62

src/Certificate/New-CSCertificate.ps1

@@ -26,6 +26,11 @@ function New-CSCertificate {
     #>
 
     [CmdletBinding(SupportsShouldProcess = $true)]
+    [Diagnostics.CodeAnalysis.SuppressMessageAttribute(
+        'PSAvoidUsingInvokeExpression',
+        '',
+        Justification = 'needed for openssl wrapping'
+    )]
     [OutputType()]
     param (
         [Parameter(Mandatory = $true, ValueFromPipeline = $true)]
@@ -57,7 +62,10 @@ function New-CSCertificate {
                 Write-Error @ErrorParams
             }
         }
-        elseif (($PSVersionTable.PSEdition -eq 'Desktop' -and $PSVersionTable.PSVersion.Major -lt 6) -or ($IsWindows -eq $true)) {
+        elseif (
+            ($PSVersionTable.PSEdition -eq 'Desktop' -and $PSVersionTable.PSVersion.Major -lt 6) -or
+            ($IsWindows -eq $true)
+        ) {
             $openssl = Join-Path -Path $ModuleBase -ChildPath '/Vendor/libressl255/openssl.exe'
         }
 
@@ -77,7 +85,9 @@ function New-CSCertificate {
         $Subj = $SubjPattern -f $SubjValues
 
         $PEMCertName = $CertName -replace '.pfx', '.crt'
-        $ExpPattern = '& ''{0}'' req -x509 -sha256 -nodes -days {1} -newkey rsa:2048 -keyout {2} -out {3} -subj "{4}" *>$null'
+        $ExpPattern = (
+            '& ''{0}'' req -x509 -sha256 -nodes -days {1} -newkey rsa:2048 -keyout {2} -out {3} -subj "{4}" *>$null'
+        )
         $ExpValues = @(
             $openssl,
             $CRTAttribute.Days