[FIX] hw_posbox_homepage: Remove format condition for refresh after uograde IoT Box

When we upgrade the IoT we wait that the version of box match with
the last version of IoT Box before to refresh.
We make a request to '/hw_proxy/get_version' to get the actual version.
In Jinja this response give a float.
We compare this value with a string using '===' who want that the format match.
So we doesn't compare the format of values but only the value by putting only '=='.

closes odoo/odoo#54149

X-original-commit: 06f9baae
Signed-off-by: Quentin Lejeune (qle) <qle@odoo.com>