Steps to reproduce the bug:
- Enable “Expiration date” in inventory settings
- Create a Storable product “P1”
    - Tracking: by serial number
    - Enable the expiration date option
    - Update the quantity:
        - Create a new Lot “SN1”:
            - select today's date as the alert date

- Go to inventory > reporting > Inventory Report
- Try to filter by “Expiration Alerts”

Problem:
The product P1 is not selected, because the filter checks the removal
date instead of the alert date

Solution:
The filter should check if the alert date is less than or equal
to today's date to display products or not, as it is for lots:
https://github.com/odoo/odoo/blob/14.0/addons/product_expiry/views/production_lot_views.xml#L30-L39



opw-2889737

closes odoo/odoo#94654

Signed-off-by: Christophe Simonis <chs@odoo.com>