chore: Remove deprecated dependency @hapi/joi

[olivermrbl]

What

• Removes deprecated dependency @hapi/joi
• Removes unused dependency joi from several packages
• Removes use of our validator from medusa-core-utils in Medusa core to remove dependency on joi entirely
  • Replace email validation with new util

[changeset-bot]

🦋 Changeset detected

Latest commit: f7cc098

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 5 packages

Name	Type
create-medusa-app	Patch
@medusajs/medusa-cli	Patch
medusa-plugin-economic	Patch
medusa-plugin-slack-notification	Patch
@medusajs/medusa	Patch

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[pKorsholm]

LGTM, I like the util approach keeping with using the same validator that is used in the api layer 😄

Question: Is there a specific reason to remove the lock files entirely from medusa-plugin-economic and medusa-plugin-slack-notification?

[olivermrbl]

Is there a specific reason to remove the lock files entirely from medusa-plugin-economic and medusa-plugin-slack-notification?

The dependencies should be taken care of by yarn workspaces similar to other packages 👍

[srindom]

LGTM!