chore: release apigateway 1.0.1 (#5353)

diff --git a/apigateway/CHANGES.md b/apigateway/CHANGES.md
index d7d1fad..c85bee1 100644
--- a/apigateway/CHANGES.md
+++ b/apigateway/CHANGES.md
@@ -1,5 +1,12 @@
 # Changes
 
+### [1.0.1](https://www.github.com/googleapis/google-cloud-go/compare/apigateway/v1.0.0...apigateway/v1.0.1) (2022-01-14)
+
+
+### Bug Fixes
+
+* **apigateway:** add ancillary service bindings to service_yaml ([3bbe8c0](https://www.github.com/googleapis/google-cloud-go/commit/3bbe8c0c558c06ef5865bb79eb228b6da667ddb3))
+
 ## 1.0.0
 
 Stabilize GA surface.
@@ -8,4 +15,3 @@
 
 This is the first tag to carve out apigateway as its own module. See
 [Add a module to a multi-module repository](https://github.com/golang/go/wiki/Modules#is-it-possible-to-add-a-module-to-a-multi-module-repository).
-