Update CHANGELOG.md (#9250)

* Update CHANGELOG.md

* Removed package upgrades (shouldn't be listed in changelog)

* Removed beta-only change

Author: melinath

CHANGELOG.md

@@ -1,5 +1,14 @@
 ## 3.70.0 (Unreleased)
 
+IMPROVEMENTS:
+* compute: added `provisioned_iops` to `google_compute_disk` ([#9193](https://github.com/hashicorp/terraform-provider-google/pull/9193))
+* compute: promoted `distribution_policy_target_shape` field in `google_compute_region_instance_group_manager` to GA. ([#9186](https://github.com/hashicorp/terraform-provider-google/pull/9186))
+* sql: added field `disk_autoresize_limit` to `sql_database_instance` ([#9203](https://github.com/hashicorp/terraform-provider-google/pull/9203))
+
+BUG FIXES:
+* cloudrun: fixed a bug where resources would return successfully due to responses based on a previous version of the resource ([#9213](https://github.com/hashicorp/terraform-provider-google/pull/9213))
+* storage: fixed error when `matches_storage_class` is set empty on `google_storage_bucket` ([#9221](https://github.com/hashicorp/terraform-provider-google/pull/9221))
+
 ## 3.69.0 (May 24, 2021)
 
 IMPROVEMENTS: