ci/integration: run "zap -a" afterwards (MR 2481)

Make sure we don't regress in "pmbootstrap zap -a" by running it after
each integration test.

.ci/integration.sh

@@ -120,4 +120,6 @@ bump_autobuild() {
 # Run the test
 echo "Running $test $*"
 "$test" "$@"
+echo "Zapping"
+pmbootstrap -y zap -a
 echo "Test $test passed!"