[HUDI-8068] Hook up source partitions to s3 incr source

[rmahindra123]

Change Logs

Currently, the source partition for s3 incr source is computed within the source. This PR adds support to be able to configure the source partition from the SourceProfile and used in case the num partitions from the source profile is higher than what is computed by the s3 incr source.

Impact

No impact to any public API.

Risk level (write none, low medium, or high below)

Low

Documentation Update

Describe any necessary documentation update if there is any new feature, config, or user-facing change. If not, put "none".

• The config description must be updated if new configs are added or the default value of the configs are changed
• Any new feature or user-facing change requires updating the Hudi website. Please create a Jira ticket, attach the ticket number here and follow the instruction to make changes to the website.

Contributor's checklist

• [ ] Read through contributor's guide
• [ ] Change Logs and Impact were stated clearly
• [ ] Adequate tests were added if applicable
• [ ] CI passed