Promotion feature issue

[Nayan-More-pilottravelcenters]

Created a Scratch org from Developer org following steps from 'b2b-commerce-on-lightning-quickstart' (https://github.com/forcedotcom/b2b-commerce-on-lightning-quickstart/tree/master/sfdx).

But new scratch org have some issues:

1. No more Promotion related objects like Promotion Segment, Promotion Discount, Promotion Qualifier ect. '
2. No Promotion tab
3. No Enhanced Checkout flows

Appreciate your work and will be thankful for quick reply.

[github-actions]

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