chainable.rbs in httpx-0.13.0

- old
+ new

@@ -16,10 +16,11 @@
               | (:digest_authentication) -> Plugins::sessionDigestAuthentication
               | (:compression) -> Session
               | (:cookies) -> Plugins::sessionCookies
               | (:expect) -> Session
               | (:follow_redirects) -> Plugins::sessionFollowRedirects
-              | (:h2c) -> Plugins::sessionH2C
+              | (:upgrade) -> Session
+              | (:h2c) -> Session
               | (:multipart) -> Session
               | (:persistent) -> Plugins::sessionPersistent
               | (:proxy) -> Plugins::sessionProxy
               | (:push_promise) -> Plugins::sessionPushPromise
               | (:retries) -> Plugins::sessionRetries