Fix NullReferenceException for dotnet tool update -g --all (#43157)

Author: nagilson

Diff for: src/Cli/dotnet/commands/dotnet-tool/install/ToolInstallGlobalOrToolPathCommand.cs

@@ -159,7 +159,7 @@ private int ExecuteInstallCommand(PackageId packageId)
 
                 if (ToolVersionAlreadyInstalled(oldPackageNullable, nugetVersion))
                 {
-                    _reporter.WriteLine(string.Format(LocalizableStrings.ToolAlreadyInstalled, _packageId, oldPackageNullable.Version.ToNormalizedString()).Green());
+                    _reporter.WriteLine(string.Format(LocalizableStrings.ToolAlreadyInstalled, oldPackageNullable.Id, oldPackageNullable.Version.ToNormalizedString()).Green());
                     return 0;
                 }   
             }