cargo: prep for 0.902.1

Cargo.toml

 [package]
 name = "gitlab"
-version = "0.902.0"
+version = "0.902.1"
 authors = ["Ben Boeckel <ben.boeckel@kitware.com>"]
 license = "MIT/Apache-2.0"
 description = """
 Gitlab API client.
 """
 repository = "https://gitlab.kitware.com/utils/rust-gitlab"
-documentation = "https://docs.rs/gitlab/0.902.0"
+documentation = "https://docs.rs/gitlab/0.902.1"
 readme = "README.md"
 keywords = ["gitlab", "api"]
 categories = ["web-programming", "api-bindings"]

README.md

@@ -39,7 +39,7 @@ coverage. It is recommended to depend on the full version of the crate since
 types may change in patch-level updates in order to match Gitlab's interface:
 
 ```toml
-gitlab = "0.902.0"
+gitlab = "0.902.1"
 ```
 
 # API bugs