Update third party

[j042]

Overview

• bump pybind version
• update bsplinelib - avoids using ReallocateInsert. Instead reallocate once at the beginning and insert to the same buffer
• update splinepy to pass multiplicity info to bsplinelib. This doesn't change python API. all unique/multiplicity/return values are manages in cpp. Regarding return value check, test will be added

TODO

• Add test for knot insertion result check

Checklists

• [ ] Added test(s)