Failed to build on ppc64 : oci-env compose up

Trying to build on ppc64le arch facing below issue while running the command

[root@ibm-p9z-26-lp14 oci_env]# oci-env compose up
Creating network "oci_env_default" with the default driver
Creating volume "oci_env_pulp" with default driver
Creating volume "oci_env_pg_data" with default driver
Creating volume "oci_env_redis_data" with default driver
Building _base
[+] Building 1.7s (7/14)
 => [internal] load build definition from Dockerfile                                                                                                    0.1s
 => => transferring dockerfile: 916B                                                                                                                    0.0s
 => [internal] load .dockerignore                                                                                                                       0.2s
 => => transferring context: 2B                                                                                                                         0.0s
 => [internal] load metadata for ghcr.io/pulp/pulp-ci-centos:3.21                                                                                       0.2s
 => [internal] load build context                                                                                                                       0.0s
 => => transferring context: 1.74kB                                                                                                                     0.0s
 => [ 1/10] FROM ghcr.io/pulp/pulp-ci-centos:3.21@sha256:d830efc3c0c200c597956ba8edaad1f0c37c19b20888c42440592bb05829fa21                               0.0s
 => CACHED [ 2/10] COPY dev_requirements.txt /dev_requirements.txt                                                                                      0.0s
 => ERROR [ 3/10] RUN dnf install -y which                                                                                                              1.1s
------
 > [ 3/10] RUN dnf install -y which:
#0 0.709 exec /bin/sh: exec format error
------
Dockerfile:10
--------------------
   8 |
   9 |     COPY dev_requirements.txt /dev_requirements.txt
  10 | >>> RUN dnf install -y which
  11 |     RUN pip3 install -r dev_requirements.txt
  12 |
--------------------
ERROR: failed to solve: process "/bin/sh -c dnf install -y which" did not complete successfully: exit code: 1
ERROR: Service '_base' failed to build : Build failed
[root@ibm-p9z-26-lp14 oci_env]#

Start with Dockerfile line 10 and the oci-env compose up build entry point, then inspect the referenced ghcr.io/pulp/pulp-ci-centos:3.21 image and ppc64le build context. Reproduce the exec format error and determine what change is needed for the base image or build configuration; done means the _base service builds successfully on ppc64le.