fix: undefined api

Author: klen

lua/rest-nvim/utils/init.lua

@@ -92,7 +92,7 @@ end
 
 M.get_node_value = function(node, bufnr)
   local start_row, start_col, _, end_col = node:range()
-  local line = api.nvim_buf_get_lines(bufnr, start_row, start_row + 1, false)[1]
+  local line = vim.api.nvim_buf_get_lines(bufnr, start_row, start_row + 1, false)[1]
   return line and string.sub(line, start_col + 1, end_col):gsub('^["\'](.*)["\']$', '%1') or nil
 end