Add ReadModel migrateAll method

[gonzalojaubert]

Description

Add ReadModel migrateAll method

Checks

• Project Builds
• Project passes tests and checks
• Updated documentation accordingly

[what-the-diff]

PR Summary

• Added migrateAll method to ReadModelSchemaMigrator
  This update introduces a new method called migrateAll which allows migration of all read models of a specific type in one step.
• Updated read-model-schema-migrator tests
  New tests have been added to verify the functionality of the migrateAll method.
• Created migration command for integration testing
  A new command has been created for integration testing purposes, which utilizes the migrateAll method.
• Created example migration and schema versions for CartReadModel
  An example has been provided to demonstrate the usage of the updated migrateAll method with the CartReadModel.
• Updated data migrations documentation
  The documentation has been updated to include more information about the new migrateAll method.

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