updated lock file cleanup to be useable by other build plugins

dependency-check-core/src/test/resources/dependencycheck.properties

@@ -36,6 +36,9 @@ data.password=DC-Pass1337!
 data.driver_name=org.h2.Driver
 data.driver_path=
 
+# the class name of the H2 database shutdown hook
+data.h2.shutdownhook=org.owasp.dependencycheck.utils.H2DBCleanupHook
+
 proxy.disableSchemas=true
 # the number of days that the modified nvd cve data holds data for. We don't need
 # to update the other files if we are within this timespan. Per NIST this file