Why is limit of callstack 5?

[da1suk8]

Currently, the limit of the call stack is defined as 5.
It is mainly used in the following codes.

cosmwasm/packages/vm/src/environment.rs

Line 15 in eda535b

pub const DYNAMIC_CALL_DEPTH_LIMIT_CNT: usize = 5;

cosmwasm/packages/vm/src/environment.rs

Lines 357 to 359 in eda535b

	if ctx.dynamic_callstack.len() >= DYNAMIC_CALL_DEPTH_LIMIT_CNT {
	return Err(VmError::dynamic_call_depth_over_limitation_err());
	}

cosmwasm/packages/vm/src/environment.rs

Lines 383 to 385 in eda535b

	if callstack.len() >= DYNAMIC_CALL_DEPTH_LIMIT_CNT {
	return Err(VmError::dynamic_call_depth_over_limitation_err());
	};

Check callstack limits and fix if necessary.