Fix price sorting by fixing product_meta_lookup min_price & max_price

[axi]

All Submissions:

• Does your code follow the WooCommerce Sniffs variant of WordPress coding standards?
• Have you written new tests for your changes, as applicable?
• Have you successfully run tests with your changes locally?
• Will this change require new documentation or changes to existing documentation?

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Changes proposed in this Pull Request:

Update the min_price & max_price values in wc_product_meta_lookup that has been wrongly set to unique cost times duration by the booking data store.

Closes #434 .

Steps to test the changes in this Pull Request:

Check the "Steps to reproduce the issue" in #434 issue

Changelog entry

Fix - Price sorting.

[axi]

Hi @ankitguptaindia, what means the draft status ? Does it need something on my side ?

[ankitguptaindia]

@axi This is our part of the process. we keep PR status in draft until we complete our QA/UAT processes so nothing from your side until we find anything in QA/UAT.