Fix controller ClusterRole file generation

Recently we bumped `controller-tools` version to `v0.9.2` to support
building controller with go1.19. This change sneakily impacted the
`build-controller-release.sh` script, which caused our prow testing jobs
to fail.

To summarize the bug we can generate the `role.yaml` file using
controller-gen `0.7.0` and `0.9.2` and inspect the differences:

```bash
diff role-controller-gen0.9.2.yaml role-controller-gen0.7.0.yaml
0a1
>
```

We can observe that the new line that used it be generated at the top of
each file is no longer there, due to the fix introduced in 0.8.0 more
precisely in kubernetes-sigs/controller-tools#626

This change combined with the command `tail -n +8` in
https://github.com/aws-controllers-k8s/code-generator/blob/v0.20.0/scripts/build-controller-release.sh#L237
causes the script to cut an extra line which happens to be declaration
of rules section in a controller ClusterRole manifest. Hence the error
observed in the prow logs:

```bash
Error: INSTALLATION FAILED: YAML parse error on emrcontainers-chart/templates/cluster-role-controller.yaml: error converting YAML to JSON: yaml: line 8: did not find expected key
```

This patch fixes the `tail` command to properly cut the generated
`role.yaml` file and avoid deleteng the `rules` section.

scripts/build-controller-release.sh

@@ -234,7 +234,7 @@ controller-gen rbac:roleName=$K8S_RBAC_ROLE_NAME paths=./... output:rbac:artifac
 # for the user to specify if they want the role to be ClusterRole or Role by specifying installation scope
 # in the helm values.yaml. We do this by having a custom helm template named _controller-role-kind-patch.yaml 
 # which utilizes the template langauge and adding the auto generated rules to that template. 
-tail -n +8  $helm_output_dir/templates/role.yaml >> $helm_output_dir/templates/_controller-role-kind-patch.yaml
+tail -n +7  $helm_output_dir/templates/role.yaml >> $helm_output_dir/templates/_controller-role-kind-patch.yaml
 
 # We have some other standard Role files for a reader and writer role, so here we rename 
 # the `_controller-role-kind-patch.yaml ` file to `cluster-role-controller.yaml`