devctr: add squashfs-tools dependency

This is to be able to manipulate squashfs images during test runs.

Signed-off-by: Pablo Barbáchano <[email protected]>

Author: pb8o

tools/devctr/Dockerfile

@@ -74,6 +74,7 @@ RUN apt-get update \
         screen tmux \
         tzdata \
         tini \
+        squashfs-tools \
         # for aws-lc-rs
         cmake \
         # for Qemu vhost-user-blk backend