Packer oracle plugin fails with "This command has to run under the root user"

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#### Overview of the Issue

Using default values from the repository to build the oci custom image. Following are steps:

root@mini-pc # git clone git@github.com:kubernetes-sigs/image-builder.git
root@mini-pc # cd image-builder/images/capi
root@mini-pc:~/Downloads/image-builder/images/capi# cat oci.json
{
"compartment_ocid": "...",
"subnet_ocid": "...",
"availability_domain": "...",
...
}
root@mini-pc # PACKER_VAR_FILES=oci.json make build-oci-oracle-linux-9
...
oracle-oci: TASK [Gathering Facts] *********************************************************
oracle-oci: ok: [default]
oracle-oci:
oracle-oci: TASK [ansible.builtin.include_role : node] *************************************
oracle-oci:
oracle-oci: TASK [setup : Perform dnf clean] ***********************************************
oracle-oci: changed: [default]
oracle-oci:
**oracle-oci: TASK [setup : Add epel repo] ***************************************************
oracle-oci: fatal: [default]: FAILED! => {"changed": false, "msg": "This command has to be run under the root user.", "results": []}
oracle-oci:**
oracle-oci: PLAY RECAP *********************************************************************
oracle-oci: default : ok=2 changed=1 unreachable=0 failed=1 skipped=172 rescued=0 ignored=0
oracle-oci:
==> oracle-oci: Provisioning step had errors: Running the cleanup provisioner, if present...
==> oracle-oci: Terminating instance (ocid1.instance.oc1.us-sanjose-1.anzwuljra62b4caczo7qsxenr6rudmdzhrakuk62xkrsgvqdygu6hh6ymctq)...
==> oracle-oci: Terminated instance.
Build 'oracle-oci' errored after 2 minutes 7 seconds: Error executing Ansible: Non-zero exit status: exit status 2

==> Wait completed after 2 minutes 7 seconds

==> Some builds didn't complete successfully and had errors:
--> oracle-oci: Error executing Ansible: Non-zero exit status: exit status 2

==> Builds finished but no artifacts were created.
make: *** [Makefile:568: build-oci-oracle-linux-9] Error 1

#### Reproduction Steps

root@mini-pc # PACKER_VAR_FILES=oci.json make build-oci-oracle-linux-9

### Plugin and Packer version

root@mini-pc # packer version
Packer v1.11.2
root@mini-pc # cat packer/oci/config.pkr.hcl
packer {
required_plugins {
oracle = {
source = "github.com/hashicorp/oracle"
version = "~> 1.1.0"
}
}
}

### Simplified Packer Buildfile
No change.

### Operating system and Environment details

Linux x86_64

### Log Fragments and crash.log files

Set the env var `PACKER_LOG=1` for maximum log detail.

Start with the `build-oci-oracle-linux-9` target in Makefile:568 and the configuration in `packer/oci/config.pkr.hcl`, then reproduce the failing `setup : Add epel repo` task. Trace why that task is not running with the required privileges in the Oracle build. Done means the build completes successfully and creates an OCI artifact.

Written by the indexing model from the issue text.