fix package name

contribs/application/src/test/java/org/matsim/application/prepare/network/params/ApplyNetworkParamsTest.java

@@ -36,7 +36,7 @@ void apply() throws Exception {
 			"--network", output.resolve("network.xml").toString(),
 			"--input-features", output.resolve("network-ft.csv").toString(),
 			"--output", output.resolve("network-opt.xml").toString(),
-			"--model", "org.matsim.application.prepare.network.opt.ref.GermanyNetworkParams"
+			"--model", "org.matsim.application.prepare.network.params.ref.GermanyNetworkParams"
 		);
 
 		assertThat(output.resolve("network-opt.xml")).exists();