Drop nonSerializable models on shutdown and exclude them from backup

Also changes the semantics of "failIfUnsupportedType" to include nonSerializable models
when the reason is (for example) non serializable trainerMethod rather than model type.

Co-Authored-By: Adam Schill Collberg <adam.schill.collberg@protonmail.com>

Author: breakanalysis

ml/ml-algo/src/main/java/org/neo4j/gds/ml/models/logisticregression/LogisticRegressionData.java

@@ -31,8 +31,10 @@
 import org.neo4j.gds.ml.models.Classifier;
 import org.neo4j.gds.ml.models.TrainingMethod;
 
+import java.io.Serializable;
+
 @ValueClass
-public interface LogisticRegressionData extends Classifier.ClassifierData {
+public interface LogisticRegressionData extends Classifier.ClassifierData, Serializable {
 
     Weights<Matrix> weights();
     Weights<Vector> bias();