Added missing Save on Bulk operation when being published

[duckchip]

Description

When we create a new Bulk with a list of operations, the bulk is saved but the operations are not. Which results in everlasting pending operations in the operations grid

Fixed Issues (if relevant)

1. New bulk schedule doesn't create operations automatically #23958: New bulk schedule doesn't create operations automatically

Manual testing scenarios

1. Create new bulk
2. Notice that the operations are added to the magento_operations table.

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds are green)

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