Fix windows build

Author: sethrj

test/corecel/CMakeLists.txt

@@ -89,7 +89,9 @@ celeritas_add_test(math/TridiagonalSolver.test.cc)
 
 # Sys
 celeritas_add_test(sys/ActionRegistry.test.cc)
-celeritas_add_test(sys/Device.test.cc GPU)
+celeritas_add_test(sys/Device.test.cc GPU
+  LINK_LIBRARIES nlohmann_json::nlohmann_json
+)
 celeritas_add_test(sys/Environment.test.cc
   ENVIRONMENT "ENVTEST_ONE=1;ENVTEST_ZERO=0;ENVTEST_EMPTY="
   LINK_LIBRARIES nlohmann_json::nlohmann_json