[HUDI-7770] Parse partition path from hudi directory for bootstrap tables

[jonvex]

Change Logs

Parse using the hudi path instead of the bootstrap base path incase the path has changed due to timestampkeygen etc.

Impact

partition parsing is correct for bootstrap and easier to maintain

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

none

Documentation Update

N/A

Contributor's checklist

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

[hudi-bot]

CI report:

• 985234dd8da51ee1e5a4fda66b3eef28bdef6d0a Azure: SUCCESS

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