RFE-2012 aims to make the user-defined resource tags feature GA. This means that user defined tags should be updatable.

Currently the aws-ebs-csi-driver-operator adds user-defined tags during operator starting only.

The operator already has infraInformers defined and used during operator starting.

However, the operator so far only add user-defined tags as command-line argument to the operator while starting. This function is used for this purpose.

To make user-defined tags updatable, the operator should use the `infraInformers` to watch the Infrastructure CRD for changed user-defined tags, and updates the resources provisioned by the operator accordingly.

Acceptance Criteria:

• Tests to verify that the EBS volumes are updated without dataloss.