fix: [compose-core] make charm resource work correctly when host charm store is not ``/srv/charm-store``

bin/compose-core

@@ -4130,11 +4130,13 @@ _get_docker_compose_mixin_from_metadata_cached() {
                 fi
             done < <(printf "%s" "$metadata" | shyaml get-values-0 "host-resources" 2>/dev/null)
             while read-0 resource; do
-                dest="$(charm.get_dir "$charm")/resources$resource"
+		charm_path="$(charm.get_dir "$charm")"
+                dest="$charm_path/resources$resource"
+		host_dest="$HOST_CHARM_STORE${dest#$CHARM_STORE}"
                 if ! [ -e "$dest" ]; then
-                    die "charm-resource: '$resource' does not exist (file: '$dest')."
+                    die "charm-resource: '$resource' does not exist (file: '$host_dest')."
                 fi
-                echo "  - $dest:$resource:ro"
+                echo "  - $host_dest:$resource:ro"
             done < <(echo "$metadata" | shyaml get-values-0 "charm-resources" 2>/dev/null)
                ) || return 1
         if [ "$volumes" ]; then
@@ -6405,4 +6407,4 @@ esac
 
 clean_unused_docker_compose || exit 1
 
-exit "$errlvl"
+exit "$errlvl"