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FFI: Drop finalizer table rehash after GC cycle.

Reported by Sergey Kaplun.

(cherry picked from commit fb22d0f80)

The raising of the OOM error when rehashing the finalizer table (when we
can't allocate a new hash part) leads to crashes in either
`lj_trace_exit()` or `lj_trace_unwind()` due to unprotected error
raising, which either has no DWARF eh_frame or loses the context of the
JIT compiler.

This patch drops rehashing of the finalizer table to avoid these
crashes.

Sergey Kaplun:
* added the description and the test for the problem

Part of tarantool/tarantool#10199
Resolves tarantool/tarantool#10290

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