Use -NoProfile when invoking pwsh in Pester tests (#2061)

Author: MatejKafka

Tests/Engine/InvokeScriptAnalyzer.tests.ps1

@@ -604,7 +604,7 @@ Describe "-ReportSummary switch" {
     }
 
     It "prints the correct report summary using the -NoReportSummary switch" {
-        $result = & $pwshExe -Command "Import-Module '$pssaPath'; Invoke-ScriptAnalyzer -ScriptDefinition gci -ReportSummary"
+        $result = & $pwshExe -NoProfile -Command "Import-Module '$pssaPath'; Invoke-ScriptAnalyzer -ScriptDefinition gci -ReportSummary"
 
         "$result" | Should -BeLike $reportSummaryFor1Warning
     }

build.psm1

@@ -351,7 +351,7 @@ function Test-ScriptAnalyzer
             }
             else {
                 $powershell = (Get-Process -id $PID).MainModule.FileName
-                & ${powershell} -Command $scriptBlock
+                & ${powershell} -NoProfile -Command $scriptBlock
             }
         }
         finally {