ci: fix failure to download apt packages
ci: fix failure to download apt packages

The cache was out of date and the workflow tried to download versions of
package that were removed.

Signed-off-by: Pau Ruiz Safont <9c4aad32b049b39a74875643d7fe76c19fd4f9a1@citrix.com>

xapi-project/xs-opam,lindig/xs-opam