[aws-for-fluent-bit] update chart to support kubernetes events

**Is your feature request related to a problem?**

now that fluentbit is updated, it has support for logging kubernetes events. https://docs.fluentbit.io/manual/data-pipeline/inputs/kubernetes-events#get-started

**Is your feature request related to a specific Helm chart, if yes mention name of the chart?**

aws-for-fluent-bit

**Describe the solution you'd like**

it can almost be enabled within the chart now by defining an additional input and output, however it requires additional permissions that the existing clusterrole does not have. perhaps a toggle to add the permissions to the role would suffice.

**Describe alternatives you've considered**

create an out of band cluster role with the necessary permissions and bind it to the fluent bit service account

Start by examining the aws-for-fluent-bit Helm chart's existing ClusterRole and the values used for additional inputs and outputs. Compare its permissions with Fluent Bit's Kubernetes Events requirements; done means the chart can enable Kubernetes event logging while granting the necessary permissions through its existing role configuration.

Written by the indexing model from the issue text.