Use valid relationships

[greg0ire]

During a recent refactoring, I had to pick a relationship type for this piece of code, and I chose wrong, because a many-to-one cannot have a mappedBy field.

[SenseException]

Maybe the psalm/phpstan array annotation of fromMappingArray can be improved. In AssociationMapping the keys are defined like

    /**
     * @psalm-param array{
     *     fieldName: string,
     *     sourceEntity: class-string,
     *     targetEntity: class-string,
     *     joinTable?: mixed[]|null,
     *     type?: int,
     *     isOwningSide: bool, ...} $mappingArray
     */

and in OneToManyAssociationMapping it's /** @param mixed[] $mappingArray */.