Image Builder on RHEL 9 is unable to install a RHEL 8 distro with packages signed with SHA1

Issue

• When using osbuild-composer in RHEL 9.5 it's not possible to build RHEL 8 images

• Compose logs show the below error:

  warning: Signature not supported. Hash algorithm SHA1 not available.
  error: /tmp/gpgkey.b8axqp6l: key 2 import failed.
  Traceback (most recent call last):
  File "/run/osbuild/bin/org.osbuild.rpm", line 253, in <module>
  r = main(args["tree"], args["inputs"], args["options"])
  File "/run/osbuild/bin/org.osbuild.rpm", line 152, in main
  subprocess.run([
  File "/usr/lib64/python3.9/subprocess.py", line 528, in run
  raise CalledProcessError(retcode, process.args,
  subprocess.CalledProcessError: Command '['rpmkeys', '--root', '/run/osbuild/tree', '--import', '/tmp/      gpgkey.b8axqp6l']' returned non-zero exit status 1.