Add flag "Z" in run-docker-build-env.sh for podman compatibility

[alfonsoalongi]

Hello,
can you add the flag "Z" to mount the volume with correct permissions also in podman?
The file is run-docker-build-env.sh.

docker run -it --rm -v "$(pwd):/ExtendedAndroidTools:Z" extended-android-tools

Thank you in advance.