fix win_shell/win_command nonzero RC failure setting (#26443)

* as a result of recent core engine changes to ignore rc, modules are responsible to set `failed` on nonzero RC if they want that behavior
* the `failed` filter currently triggers on nonzero RC, which caused the tests to false-pass
* updated tests to explicitly check both rc and failed keys, as well as using the failed filter.

lib/ansible/modules/windows/win_command.ps1

@@ -159,6 +159,10 @@ $proc.WaitForExit() | Out-Null
 
 $result.rc = $proc.ExitCode
 
+If ($result.rc -ne 0) {
+    $result.failed = $true
+}
+
 $end_datetime = [DateTime]::UtcNow
 
 $result.start = $start_datetime.ToString("yyyy-MM-dd hh:mm:ss.ffffff")

lib/ansible/modules/windows/win_shell.ps1

@@ -168,6 +168,10 @@ $proc.WaitForExit() | Out-Null
 
 $result.rc = $proc.ExitCode
 
+If ($result.rc -ne 0) {
+    $result.failed = $true
+}
+
 $end_datetime = [DateTime]::UtcNow
 
 $result.start = $start_datetime.ToString("yyyy-MM-dd hh:mm:ss.ffffff")