Fixes invalid dynamic bundle prices due `floatval()` with int comparison

[JonathanBBD]

Fixes dynamic bundle prices due to strict compare with a floatval(...) function and a integer. Fixed issue https://github.com/magmodules/magento2-channable/issues/153 for me.

Problem

Dynamic bundle prices shows an invalid price on facebook. It uses the field catalog_product_index_price.max_price instead of the base price calculated with final price.

Test.

1. Create a bundle product
2. Create 2-3 optional options
3. Run bin/magento channable:item:update

Bundle data before patch

Uses invalid price on facebook 298.10 due to max price.

    [70466] => Array
        (
            [id] => 70466
            [title] => DHZ Overkapping Renesse Red Class Wood B400xD313cm
            [ean] => 
            [price] => 27.80
            [min_price] => 27.80
            [max_price] => 298.10
            [type_id] => bundle
            [status] => Enabled
            [visibility] => Catalog, Search
            [availability] => 1
            [manage_stock] => true
            [qty] => 
        )

Bundle data after patch

Uses correct base price 1265.95 on facebook.

    [70466] => Array
        (
            [id] => 70466
            [title] => DHZ Overkapping Renesse Red Class Wood B400xD313cm
            [ean] => 
            [price] => 1265.95
            [min_price] => 1046.24
            [max_price] => 2783.96
            [type_id] => bundle
            [status] => Enabled
            [visibility] => Catalog, Search
            [availability] => 1
            [manage_stock] => true
            [qty] => 
        )