tools/docker: add various fsck-like commands to the environment

[FlorentRevest]

As part of #5518, I'm adding fsck logs as annotation to the mounted file system assets. For this, I need a variety of fsck-like commands in the ci environment as well as eventually in the production environment.

[a-nogikh]

$ docker build --no-cache -t gcr.io/syzkaller/env tools/docker/env
< ... >
E: Package 'hfsprogs' has no installation candidate

Does it work on your side?

[FlorentRevest]

Does it work on your side?

Argh, I ran a docker build but not in the right branch, that's why it worked ahah. I think that's because hfsprogs is in the non-free repository. I suppose we could either add that repository or drop the hfs and hfsplus fsck calls. Do you have a preference ?

[a-nogikh]

Let's skip hfs for now.

[FlorentRevest]

Done

[a-nogikh]

Deployed gcr.io/syzkaller/env -- you can now try to check whether CI tests began to work for the other PR.

[FlorentRevest]

Yes all tests on that PR pass now :)