fix(native): ensure buckets use valid references

[goshawk-3]

fixes #201

• Previously, the variables declared by a “for” loop were created once and updated by each iteration. In Go 1.22, each iteration of the loop creates new variables, to avoid accidental sharing bugs. The transition support tooling described in the proposal continues to work in the same way it did in Go 1.2

  • src: https://tip.golang.org/doc/go1.22

• Although, it's fixed in latest golang version, it's cheaper to avoid the bug.

Result:

DEBUG[12-19|10:13:58.842] Add operation                            module="fhevm:sync compute" op=FHE_TRIVIAL_ENCRYPT handle=29c43b..f40300
DEBUG[12-19|10:13:58.842] Add operation                            module="fhevm:sync compute" op=FHE_TRIVIAL_ENCRYPT handle=59b4f9..500300
DEBUG[12-19|10:13:58.842] Add operation                            module="fhevm:sync compute" op=FHE_MUL             handle=2d8a85..460300
INFO [12-19|10:13:58.842] Sending grpc request                     module="fhevm:sync compute" computations=3 "compressed ciphertexts"=2