CI: use podman as container runtime

With the most recent kernel changes docker fails to setup the container
networking. Docker relies on the legacy iptables which is not compiled
into the kernel by default anymore.

Let's take this opportunity to move to podman.

Signed-off-by: Dennis Maisenbacher <[email protected]>

Author: MaisenbacherD

.github/workflows/run-nightly-tests.yml

@@ -146,8 +146,8 @@ jobs:
             #that contains a valid nvme namespace which is capable of the nvm
             #command set.
 
-            sudo docker run --privileged \
-            -v "/dev":"/dev":z \
+            sudo podman run --privileged \
+            --device="${BDEV0}":"${BDEV0}":rwm \
             -e BDEV0 \
             -v "${PWD}/test.sh":"/test.sh" \
             -v "${PWD}/nvme-cli":"/nvme-cli":z \