Fix squashfuse issues

[Erik Parawell (ErikParawell-SiFive)]

Fix issues caught by Ashley Coleman (@V-FEXrt) after #1439 was merged

Also built a test case for wakebox squashfuse. In doing so I discovered that I was not invoking squashfuse correctly so that is corrected now.
As a side note the test case sleeps for 3 seconds before it exits because it is possible that fuse is still unmounting when the rm -rf cleanup happens. Maybe wakebox needs a -o notify_pipe 😆

List of changes:

• Added a test case to test squashfsfuse in wakebox.
• Added bash to Alpine Dockerfile because I think that is a small requirement.
• Updated the package lists in the README.md to include squashfuse related ones.
• Addressed the post merge comments from Replace polling squashfuse #1439

[Jake Ehrlich (JakeSiFive)]

We should add a test for this so that we don't hit this issue in the future.

A simple wakebox unit test that just runs cats a file out of a squash fuse mount would suffice

[Erik Parawell (ErikParawell-SiFive)]

I agree we should have a test case for this. I didn't realize we did not have one

[Jake Ehrlich (JakeSiFive)]

Me neither but the fact that this bug slipped passed CI indicates to me that it must be untested

[Erik Parawell (ErikParawell-SiFive)]

Made a test case and update description:

Also built a test case for wakebox squashfuse. In doing so I discovered that I was not invoking squashfuse correctly so that is corrected now.
As a side note the test case sleeps for 3 seconds before it exits because it is possible that fuse is still unmounting when the rm -rf cleanup happens. Maybe wakebox needs a -o notify_pipe 😆

[Jake Ehrlich (JakeSiFive)]

I'll take over this PR so it can land soon

[Jake Ehrlich (JakeSiFive)]

I'm going to wait to debug the rest of this. Issues like this are best debugged using a local podman/docker container but I've had serious issues getting docker to work correctly with namespacing since the kernel they use on the VM to run the containers on doesn't have things configured correctly. There is a way to use your own kernel on Mac docker but I'm lazy and would rather wait until I'm back home with my linux dev laptop that I can run podman on.