v15.64.5

## Bug Fixes
* Updates **Leave Allocation** checks for maximum allowed leave to use the allocation’s own _From Date_ and _To Date_ when it spans multiple leave periods, so allocations from another period aren’t incorrectly counted against the limit. (https://github.com/frappe/hrms/pull/5434)

**Authors**: @asmitahase
**Reviewers**: @asmitahase

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