[containerfile] chown rapidast home

[cedricbu]

to prevent the following when running with the rapidast image:

The home path is not writable: /home/rapidast/.ZAP/
Found Java version 11.0.20
Available memory: 15979 MB
Using JVM args: -Xmx3994m
The home path is not writable: /home/rapidast/.ZAP/
WARNING:The ZAP process did not finish correctly, and exited with code 1
INFO:Running postprocess for the ZAP Podman environment
Traceback (most recent call last):
  File "/home/cedric/prodsec/rapidast/rapidast/./rapidast.py", line 224, in <module>
    run()
  File "/home/cedric/prodsec/rapidast/rapidast/./rapidast.py", line 209, in run
    ret = run_scanner(name, config, args, defect_d)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/cedric/prodsec/rapidast/rapidast/./rapidast.py", line 106, in run_scanner
    scanner.postprocess()
  File "/home/cedric/prodsec/rapidast/rapidast/scanners/zap/zap_podman.py", line 146, in postprocess
    raise RuntimeError(
RuntimeError: No post-processing as ZAP has not successfully run yet.

[jeremychoi]

LGTM