Module exported variables should not be flagged with PSUseDeclaredVarsMoreThanAssignment

Repro: In a module, define and assign a variable then export it using Export-ModuleMember -Variable

$MyVariable = 'some value'
Export-ModuleMember -Variable MyVariable

Expected: Invoke-ScriptAnalyzer does not flag the variable as unused.
Actual:
file: 'file:MyModule.psm1'
severity: 'Warning'
message: 'The variable 'MyVariable' is assigned but never used. (PSUseDeclaredVarsMoreThanAssignments)'

首先使用 MyModule.psm1 範例重現此問題：為 MyVariable 指派值，並使用 Export-ModuleMember -Variable 匯出它。追蹤 PSUseDeclaredVarsMoreThanAssignments 規則及其現有測試，然後驗證匯出的模組變數不再被報告為已指派但從未使用。