Fix blocks checkout local pickup

[alefesouza]

Fixes #399

Description

Alongside woocommerce/woocommerce#54946 this PR fixes #399 issue by disabling the "supports local pickup" flag on the blocks checkout page shipping rates when there's a subscription on the cart.

This still allows the local pickup methods to be selected but changes the blocks checkout page to show all shipping methods on a single page.

Before	After

How to test this PR

• Load Allow mixing shipping and pickup on blocks checkout woocommerce/woocommerce#54946 changes on your WooCommerce installation.
• On WooCommerce direction run:

pnpm install
cd plugins/woocommerce
pnpm watch:build

• Follow Allow mixing shipping and pickup on blocks checkout woocommerce/woocommerce#54946 testing instructions.

Product impact

• Added changelog entry (or does not apply)
• Will this PR affect WooCommerce Subscriptions? yes/no/tbc, add issue ref
• Will this PR affect WooCommerce Payments? yes/no/tbc, add issue ref
• Added deprecated functions, hooks or classes to the spreadsheet

[alefesouza]

Closing to be discussed on the RFC pgizk6-7o-p2