Update password from String to SecureString

src/ContainerRegistry/ContainerRegistry.Autorest/custom/Credential.cs

@@ -10,12 +10,12 @@ public class PSContainerRegistryCredential
         public PSContainerRegistryCredential(RegistryListCredentialsResult credentials)
         {
             Username = credentials?.Username;
-            Password = credentials?.Password?.Length > 0 ? credentials.Password[0]?.Value : string.Empty;
-            Password2 = credentials?.Password?.Length > 1 ? credentials.Password[1]?.Value : string.Empty;
+            Password = credentials?.Password?.Length > 0 ? credentials.Password[0]?.Value.ToSecureString() : string.Empty.ToSecureString();
+            Password2 = credentials?.Password?.Length > 1 ? credentials.Password[1]?.Value.ToSecureString() : string.Empty.ToSecureString();
         }
 
         public string Username { get; set; }
-        public string Password { get; set; }
-        public string Password2 { get; set; }
+        public System.Security.SecureString Password { get ; set; }
+        public System.Security.SecureString Password2 { get ; set; }
     }
 }

src/ContainerRegistry/ContainerRegistry.Autorest/custom/Utils.cs

@@ -0,0 +1,19 @@
+namespace Microsoft.Azure.PowerShell.Cmdlets.ContainerRegistry.Models.Api202301Preview
+{
+    public static class Utils
+    {
+		public static System.Security.SecureString ToSecureString(this string input)
+		{
+		  if (string.IsNullOrEmpty(input))
+		    return null;
+
+		  System.Security.SecureString secureString = new System.Security.SecureString();
+		  foreach (char c in input)
+		  {
+		    secureString.AppendChar(c);
+		  }
+		  secureString.MakeReadOnly();
+		  return secureString;
+		}
+    }
+}