deploy: fail the script if ansible fails

Signed-off-by: Mattia Rizzolo <mattia@debian.org>

deploy

@@ -76,5 +76,4 @@ fi
 # Finally execute the playbook against the server
 "${BIN_ANSIBLE_PLAYBOOK}" -i "${DIR_TEMP}/env/hosts" \
                          "${DIR_TEMP}/play/playbook.yml" \
-                         ${vault_flags} \
-                         || true
+                         ${vault_flags}