🩹 [Patch]: Remove default value for Path input in action.yml and update path resolution logic in main.ps1

Author: MariusStorhaug

action.yml

@@ -9,7 +9,6 @@ inputs:
   Path:
     description: The path to the code to test.
     required: false
-    default: '.'
   Settings:
     description: The type of tests to run. Can be either 'Module', 'SourceCode' or 'Custom'.
     required: false

scripts/main.ps1

@@ -1,7 +1,8 @@
 # If test type is module, the code we ought to test is in the path/name folder, otherwise it's in the path folder.
 $settings = $env:PSMODULE_INVOKE_SCRIPTANALYZER_INPUT_Settings
 $testPath = Resolve-Path -Path "$PSScriptRoot/tests/PSScriptAnalyzer" | Select-Object -ExpandProperty Path
-$codePath = Resolve-Path -Path $env:PSMODULE_INVOKE_SCRIPTANALYZER_INPUT_Path | Select-Object -ExpandProperty Path
+$path = [string]::IsNullOrEmpty($env:PSMODULE_INVOKE_SCRIPTANALYZER_INPUT_Path) ? '.' : $env:PSMODULE_INVOKE_SCRIPTANALYZER_INPUT_Path
+$codePath = Resolve-Path -Path $path | Select-Object -ExpandProperty Path | Select-Object -ExpandProperty Path
 $settingsFilePath = switch -Regex ($settings) {
     'Module|SourceCode' {
         "$testPath/$settings.Settings.psd1"