Service-account airbyte-admin cannot be overridden

### Helm Chart Version

2.0

### What step the error happened?

On deploy

### Relevant information

Seeing this error

Error: INSTALLATION FAILED: release airbyte failed, and has been uninstalled due to atomic being set: failed pre-install: warning: Hook pre-install airbyte/charts/airbyte-bootloader/templates/pod.yaml failed: 1 error occurred:
* pods "airbyte-airbyte-bootloader" is forbidden: error looking up service account airbyte/airbyte-admin: serviceaccount "airbyte-admin" not found

Our config has

`serviceAccount:
create: true
name: airbyte-sa-user
annotations:
eks.amazonaws.com/role-arn: arn:aws:iam:::role/AirbyteIrsaRole

jobs:
kube:
nodeSelector: { airbyte_node_type: worker }
namespace: airbyte
tolerations:
- key: "airbyte"
operator: "Equal"
value: "worker"
effect: "NoSchedule"
serviceAccountName: airbyte-sa-user
`

This seemed to work fine in the older 1.8 version

### Relevant log output

```shell

```