Update to ACK runtime v0.23.0, code-generator v0.23.1 (#92)

### Update to ACK runtime `v0.23.0`, code-generator `v0.23.1`

----------

* ACK code-generator `v0.23.1` [release notes](https://github.com/aws-controllers-k8s/code-generator/releases/tag/v0.23.1)
* ACK runtime `v0.23.0` [release notes](https://github.com/aws-controllers-k8s/runtime/releases/tag/v0.23.0)

----------

NOTE:
This PR increments the release version of service controller from `v0.2.15` to `v0.2.16`

Once this PR is merged, release `v0.2.16` will be automatically created for `applicationautoscaling-controller`

**Please close this PR, if you do not want the new patch release for `applicationautoscaling-controller`**

----------

#### stdout for `make build-controller`:

```
building ack-generate ... ok.
==== building applicationautoscaling-controller ====
Copying common custom resource definitions into applicationautoscaling
Building Kubernetes API objects for applicationautoscaling
Generating deepcopy code for applicationautoscaling
Generating custom resource definitions for applicationautoscaling
Building service controller for applicationautoscaling
Generating RBAC manifests for applicationautoscaling
Running gofmt against generated code for applicationautoscaling
Updating additional GitHub repository maintenance files
==== building applicationautoscaling-controller release artifacts ====
Building release artifacts for applicationautoscaling-v0.2.16
Generating common custom resource definitions
Generating custom resource definitions for applicationautoscaling
Generating RBAC manifests for applicationautoscaling
```

----------

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

apis/v1alpha1/ack-generate-metadata.yaml

@@ -1,9 +1,9 @@
 ack_generate_info:
-  build_date: "2022-12-08T18:31:29Z"
-  build_hash: 12246c7da82841b351ec7a9e1f139f9338f2784b
-  go_version: go1.17.5
-  version: v0.21.0
-api_directory_checksum: 6a10685980ee0dfddcf83fb3555f58e31d1e24c1
+  build_date: "2023-02-02T18:18:44Z"
+  build_hash: b55ae8752ece381c383ffe5b388ed2147c6b30d8
+  go_version: go1.19
+  version: v0.23.1
+api_directory_checksum: 81d152c4602b014d435a9ba3d716ed5112273013
 api_version: v1alpha1
 aws_sdk_go_version: v1.44.93
 generator_config_info: