[14.0] [ADD] queue_job_batch_size

[paradoxxxzero]

This module allows to seemlessly split a big job into smaller jobs.

It uses queue_job_batch to group the created jobs into a batch.

Example:

classResPartner(models.Model):
# ...defcopy_all_partners(self):
# Duplicate all partners in batches of 30:self.with_delay(batch_size=30).copy()
# ...self.env['res.partner'].search([], limit=1000).copy_all_partners()

This will create 34 jobs, each one copying 30 partners (except the last one which will copy 10) and will group them into a batch.

Instead of batch_size, one can also use batch_count to specify the number of batches to create instead.

[amh-mw]

This generally feels like it should be an improvement to queue_job_batch, not its own module. I'm setting up a local test environment today and will report back with observations.

[amh-mw]

This seems straightforward enough, but the corresponding change to def delayable is missing.

[github-actions]

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[simahawk]

@paradoxxxzero shall we close this one in favor of #658 ?