Support prerelease versions of podman binary

Fix bug in FailFastError and add unit test

It was trying to parse the newline character

Since FailFastError was just another `error`, all errors were technically `FailFastErrors`.

This code makes `FailFastError` a struct which implements the error interface, so that now errors can be distinctly identified as `FailFastError`'

Also added a unit test to prove that this works now.

Check for iptables file before determining container is running

apiserverHealthz: wait up to 8s before declaring failure

Add --cni flag (replaces --enable-default-cni), fix --network-plugin handling

docker driver on linux: Give warning if overlay module is not enabled

Improve error and logging emitted by WaitForAppsRunning

Reduce coredns replicas from 2 to 1

Allow passing in extra args to etcd via command line

This is an easy way to improve overhead, and users can always scale this back up if they need to.

integration: add more MacOS test to github actions

Rename falco-probe package to falco-module instead

Same software, but upstream changed the packaging.

Bump Dashboard to v2.0.1

Skip node pressure check if other checks failed, add retry