podman: Rabbit config update script doesnt have permissions to modify the config file

[MoralCode]

In our rabbitmq container image, we have a script that populates the credentials in the config based on the environment variables available at build time.

I recently saw this error when rebuilding my local instance's container image in podman

STEP 15/16: COPY docker/rabbitmq/update_config.py /
--> Using cache 711eede66212dc63de0c796c17811c96cd2dfec5f98c5ab608ea2259c77debd5
--> 711eede66212
STEP 16/16: RUN exec python3 update_config.py
Traceback (most recent call last):
  File "//update_config.py", line 40, in <module>
    with config_file.open("w") as file:
         ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/pathlib.py", line 1013, in open
    return io.open(self, mode, buffering, encoding, errors, newline)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/etc/rabbitmq/definitions.json'
Error: building at STEP "RUN exec python3 update_config.py": while running runtime: exit status 1