Add: add product form tests (download options, inventory) (#52)

* Add: add product form tests (getdokan#2385)

* Add: add product form tests (download options, inventory)

* Fix : revert unwanted changes

* Add & Refactor vendor payment tests (getdokan#2387)

* Add: add vendor payment tests

* Update: update feature map

* Update: remove test.only

* Add $data parameter to dokan_update_vendor hook (getdokan#2386)

* Add $data parameter to dokan_update_vendor hook

- Added $data array as second parameter to dokan_update_vendor action hook
- Updated doc block for dokan_update_vendor hook to reflect new parameter
- Added doc block for dokan_before_update_vendor hook

* update: hook doc blocks

* update:hook metadata with since attribute

* chore: Release Version 3.12.4

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Co-authored-by: Al Amin Ahamed <34349365+mralaminahamed@users.noreply.github.com>
Co-authored-by: Shazahanul Islam Shohag <shohag121@gmail.com>