fix: Correct Ollama channel authentication header setting

relay/channel/ollama/adaptor.go

@@ -39,7 +39,7 @@ func (a *Adaptor) GetRequestURL(info *relaycommon.RelayInfo) (string, error) {
 
 func (a *Adaptor) SetupRequestHeader(c *gin.Context, req *http.Header, info *relaycommon.RelayInfo) error {
 	channel.SetupApiRequestHeader(info, c, req)
-	header.Set("Authorization", "Bearer "+info.ApiKey)
+	req.Set("Authorization", "Bearer "+info.ApiKey)
 	return nil
 }