fix: deprecation warnings on 0.11

lua/neoconf/build/schemas.lua

@@ -96,7 +96,7 @@ function M.get_schema(schema)
 
   local properties = {}
 
-  if vim.tbl_islist(config) then
+  if Util.islist(config) then
     for _, c in pairs(config) do
       vim.list_extend(properties, c.properties)
     end

lua/neoconf/schema.lua

@@ -1,4 +1,5 @@
 local Settings = require("neoconf.settings")
+local Util = require("neoconf.util")
 
 local M = {}
 
@@ -57,7 +58,7 @@ function M.to_schema(value)
     return { type = "number", default = value, description = "number" }
   end
 
-  if vim.tbl_islist(value) then
+  if Util.islist(value) then
     return { type = "array", default = value, description = "array" }
   end
 

lua/neoconf/util.lua

@@ -2,9 +2,11 @@ local Config = require("neoconf.config")
 
 local M = {}
 
+M.islist = vim.islist or vim.tbl_islist
+
 function M.merge(...)
   local function can_merge(v)
-    return type(v) == "table" and (vim.tbl_isempty(v) or not vim.tbl_islist(v))
+    return type(v) == "table" and (vim.tbl_isempty(v) or not M.islist(v))
   end
 
   local values = { ... }