fix: workload module script signing in pwsh at 17:20:16

closes #2614 #2527 #3418
adds code signing to custom scripts for Identity Management and Unprotect-SecureString

Author: gavinbarron

.azure-pipelines/generation-templates/workload-modules.yml

@@ -56,7 +56,7 @@ steps:
       - template: ../common-templates/esrp/codesign.yml
         parameters:
           FolderPath: "$(System.DefaultWorkingDirectory)/src"
-          Pattern: "Microsoft.Graph.*.private.dll, Microsoft.Graph.*.psm1, Microsoft.Graph.*.psd1, Microsoft.Graph.*.format.ps1xml, ProxyCmdletDefinitions.ps1, load-dependency.ps1"
+          Pattern: "Microsoft.Graph.*.private.dll, Microsoft.Graph.*.psm1, Microsoft.Graph.*.psd1, Microsoft.Graph.*.format.ps1xml, ProxyCmdletDefinitions.ps1, load-dependency.ps1, Unprotect-SecureString.ps1, *-Mg*EntitlementManagement*.ps1"
 
       - task: PowerShell@2
         displayName: "Validate Authenticode Signature"