Fix sw8 loss when use aiohttp. (#299)

* Bugfix. when headers is not MultiDict or MultiDictProxy,should put headers back in kwargs.

* Update CHANGELOG.md

Author: Forstwith

CHANGELOG.md

@@ -5,6 +5,9 @@
 - Feature:
   - Add a new workflow to push docker images for arm64 and amd64
 
+- Fixes:
+  - Fix sw8 loss when use aiohttp.(#299,issue#10669)
+
 ### 1.0.0
 
 - **Important Note and Breaking Changes:**

skywalking/plugins/sw_aiohttp.py

@@ -55,6 +55,7 @@ async def _sw_request(self: ClientSession, method: str, str_or_url, **kwargs):
                 headers = kwargs['headers'] = CIMultiDict()
             elif not isinstance(headers, (MultiDictProxy, MultiDict)):
                 headers = CIMultiDict(headers)
+                kwargs['headers'] = headers
 
             for item in carrier:
                 headers.add(item.key, item.val)