Add tarantool-2.10 into CI

[Totktonada]

I guess we should update the version parsing code in a test:

tuple-keydef/test/tuple_keydef.test.lua

Lines 5 to 18 in d86c0a3

	local function parse_tarantool_version(component)
	-- _TARANTOOL gives a string of the following kind:
	--
	-- * '2.8.1-0-ge2a1ec0c2' for opensource tarantool;
	-- * '2.8.1-0-ge2a1ec0c2-r405' for tarantool enterprise.
	--
	-- Nicely, tarantool enterprise reports the opensource
	-- version, on which it is based, in the first four components
	-- (as well as in the commit hash).
	--
	-- So we ignore everything after 4th component.
	local pattern = '^(%d+).(%d+).(%d+)-(%d+)-g[0-9a-f]+'
	return tonumber((select(component, _TARANTOOL:match(pattern))))
	end