fix(tests): Move validator version check outside

This fixes tests on versions <0.10

lua/orgmode/utils/validator.lua

@@ -1,10 +1,12 @@
 local M = {}
 
+local has_v_0_11 = vim.fn.has('nvim-0.11') > 0
+
 --- Use the faster validate version if available
 -- Taken from: https://github.com/lukas-reineke/indent-blankline.nvim/pull/934/files#diff-09ebcaa8c75cd1e92d25640e377ab261cfecaf8351c9689173fd36c2d0c23d94R16
 --- @param spec table<string,[any, vim.validate.Validator, boolean|string]>
 function M.validate(spec)
-  if vim.fn.has('nvim-0.11') == 0 then
+  if not has_v_0_11 then
     return vim.validate(spec)
   end
   for key, key_spec in pairs(spec) do