cirrus-ci: move package_check after test

Liveness is often more important than minor packaging glitches (which
might well be the fault of a prior commit.)

Reviewed by:	emaste
Differential Revision:	https://reviews.freebsd.org/D55481

.cirrus.yml

@@ -162,13 +162,13 @@ task:
   package_script:
   - su user -c "make -j$(nproc) CROSS_TOOLCHAIN=${TOOLCHAIN} WITHOUT_TOOLCHAIN=yes packages"
 
-  package_check_script:
-  - su user -c "/usr/libexec/flua tools/pkgbase/metalog_reader.lua -c /usr/obj/$(pwd -P)/${TARGET}.${TARGET_ARCH}/worldstage/METALOG"
-
   test_script:
   - sh .cirrus-ci/pkg-install.sh qemu-nox11
   - sh tools/boot/ci-qemu-test.sh
 
+  package_check_script:
+  - su user -c "/usr/libexec/flua tools/pkgbase/metalog_reader.lua -c /usr/obj/$(pwd -P)/${TARGET}.${TARGET_ARCH}/worldstage/METALOG"
+
   make_sysent_script:
   # Check that make sysent results were committed if required
   - make sysent