Add changelog 4.75.1

Author: hao-nan-li

CHANGELOG.md

@@ -1,4 +1,14 @@
-## 4.75.0 (Unreleased)
+## 4.76.0 (Unreleased)
+
+## 4.75.1 (July 26, 2023)
+
+BUG FIXES:
+
+* vpcaccess: reverted new behaviour introduced by resource `google_vpc_access_connector` in `4.75.0`. `min_throughput` and `max_throughput` fields lost their default value, and customers could not make deployment due to that change.
+
+* vpcaccess: reverted the ability to update the number of instances for resource `google_vpc_access_connector`
+
+## 4.75.0 (July 24, 2023)
 
 FEATURES:
 * **New Resource:** `google_looker_instance` ([#5903](https://github.com/hashicorp/terraform-provider-google-beta/pull/5903))