Document `prev` argument to table constructor of `box.error.new`

[TarantoolBot]

Related dev. issue(s): tarantool/tarantool#9103

Product: Tarantool
Since: 3.1
Root document:

• https://www.tarantool.io/en/doc/latest/reference/reference_lua/box_error/new/
• https://www.tarantool.io/en/doc/latest/reference/reference_lua/box_error/error/

SME: @ Gumix

Details

Link to the design document
Requested by @ Gumix in tarantool/tarantool@885a3d7.