fix Windows env handling (#22927)

* fixes #22441
* fixes #22655
* moves all env handling into the exec wrapper; this should work for everything but raw, which is consistent with non-Windows.

lib/ansible/plugins/connection/winrm.py

@@ -305,12 +305,13 @@ class Connection(ConnectionBase):
         self.shell_id = None
         self._connect()
 
-    def _create_raw_wrapper_payload(self, cmd):
+    def _create_raw_wrapper_payload(self, cmd, environment=dict()):
         payload = {
             'module_entry': base64.b64encode(to_bytes(cmd)),
             'powershell_modules': {},
             'actions': ['exec'],
-            'exec': base64.b64encode(to_bytes(leaf_exec))
+            'exec': base64.b64encode(to_bytes(leaf_exec)),
+            'environment': environment
         }
 
         return json.dumps(payload)