chore(deps): update product

This MR contains the following updates:

Package	Update	Change
odoo12-addon-product-contract	patch	==12.0.5.2.0.99.dev3 -> ==12.0.5.3.1.99.dev7
odoo12-addon-product-contract-variable-quantity	patch	==12.0.1.0.1.99.dev2 -> ==12.0.1.0.1.99.dev6

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