fix: add missing `errs ~= nil` checks to script/vm/type checkTableShape#2956

sumneko merged 3 commits intoLuaLS:masterLuaLS/lua-language-server:masterfrom

d-enk:fix-check-vm-type-nil-errsd-enk/lua-language-server:fix-check-vm-type-nil-errsCopy head branch name to clipboard