Fix #12707, which is actually securestring can not be decrypted correctly in pwsh 7 in Linux (#12842)

Author: dolauli

src/Blockchain/custom/New-AzBlockchainMember.ps1

@@ -184,12 +184,12 @@ param(
 process {
     try {
         if ($PSBoundParameters.ContainsKey('Password')) {
-            $psTxt = [System.Runtime.InteropServices.marshal]::PtrToStringAuto([System.Runtime.InteropServices.marshal]::SecureStringToBSTR($PSBoundParameters['Password']))
+            $psTxt = . "$PSScriptRoot/../utils/Unprotect-SecureString.ps1" $PSBoundParameters['Password']
             $null = $PSBoundParameters.Remove('Password')
             $PSBoundParameters.Add('Password', $psTxt)
         }
         if ($PSBoundParameters.ContainsKey('ConsortiumManagementAccountPassword')) {
-            $psTxt = [System.Runtime.InteropServices.marshal]::PtrToStringAuto([System.Runtime.InteropServices.marshal]::SecureStringToBSTR($PSBoundParameters['ConsortiumManagementAccountPassword']))
+            $psTxt = . "$PSScriptRoot/../utils/Unprotect-SecureString.ps1" $PSBoundParameters['ConsortiumManagementAccountPassword']
             $null = $PSBoundParameters.Remove('ConsortiumManagementAccountPassword')
             $PSBoundParameters.Add('ConsortiumManagementAccountPassword', $psTxt)
         }

src/Blockchain/custom/New-AzBlockchainTransactionNode.ps1

@@ -135,7 +135,7 @@ param(
 process {
     try {
         if ($PSBoundParameters.ContainsKey('Password')) {
-            $psTxt = [System.Runtime.InteropServices.marshal]::PtrToStringAuto([System.Runtime.InteropServices.marshal]::SecureStringToBSTR($PSBoundParameters['Password']))
+            $psTxt = . "$PSScriptRoot/../utils/Unprotect-SecureString.ps1" $PSBoundParameters['Password']
             $PSBoundParameters.Remove('Password')
             $PSBoundParameters.Add('Password', $psTxt)
         }

src/Blockchain/custom/Update-AzBlockchainMember.ps1

@@ -141,12 +141,12 @@ param(
 process {
     try {
         if ($PSBoundParameters.ContainsKey('Password')) {
-            $psTxt = [System.Runtime.InteropServices.marshal]::PtrToStringAuto([System.Runtime.InteropServices.marshal]::SecureStringToBSTR($PSBoundParameters['Password']))
+            $psTxt = . "$PSScriptRoot/../utils/Unprotect-SecureString.ps1" $PSBoundParameters['Password']
             $PSBoundParameters.Remove('Password')
             $PSBoundParameters.Add('Password', $psTxt)
         }
         if ($PSBoundParameters.ContainsKey('ConsortiumManagementAccountPassword')) {
-            $psTxt = [System.Runtime.InteropServices.marshal]::PtrToStringAuto([System.Runtime.InteropServices.marshal]::SecureStringToBSTR($PSBoundParameters['ConsortiumManagementAccountPassword']))
+            $psTxt = . "$PSScriptRoot/../utils/Unprotect-SecureString.ps1" $PSBoundParameters['ConsortiumManagementAccountPassword']
             $PSBoundParameters.Remove('ConsortiumManagementAccountPassword')
             $PSBoundParameters.Add('ConsortiumManagementAccountPassword', $psTxt)
         }

src/Blockchain/custom/Update-AzBlockchainTransactionNode.ps1

@@ -133,7 +133,7 @@ param(
 process {
     try {
         if ($PSBoundParameters.ContainsKey('Password')) {
-            $psTxt = [System.Runtime.InteropServices.marshal]::PtrToStringAuto([System.Runtime.InteropServices.marshal]::SecureStringToBSTR($PSBoundParameters['Password']))
+            $psTxt = . "$PSScriptRoot/../utils/Unprotect-SecureString.ps1" $PSBoundParameters['Password']
             $PSBoundParameters.Remove('Password')
             $PSBoundParameters.Add('Password', $psTxt)
         }