Increase polling interval when waiting for containers

**Describe the bug**
compose_wait is polling the containers every 250ms (default for podman wait). For interactive sessions this is okay, but in this setting it creates some load when there are many containers.
Just add a '-i 2s' as parameter

**To Reproduce**
podman-compose up

**Expected behavior**
Poll less frequent, e.g. every 2 seconds.

**Actual behavior**
Polling every 0.25s