[BUG] Bufferline diagnostics_update_in_insert is deprecated

[pinarruiz]

Field	Description
Plugin	Bufferline.nvim
Nixpkgs	unstable (ad0b5eed1b6031efaed382844806550c3dcb4206)

• I have read the FAQ and my bug is not listed there.

Description

When using the bufferline option plugins.bufferline.diagnosticsUpdateInInsert, i get the following error:

diagnostics_update_in_insert is deprecated, use vim.diagnostic.config { update_in_insert = true } instead.
Feature will be removed in bufferline 4.6.3

Minimal, Reproducible Example (MRE)

programs.nixvim.plugins.bufferline = {
  enable = true;
  diagnostics = "nvim_lsp";
  diagnosticsUpdateInInsert = true;
  diagnosticsIndicator = ''
    function(count, level, diagnostics_dict, context)
      local s = " "
      for e, n in pairs(diagnostics_dict) do
        local sym = e == "error" and "󰅚 "
          or (e == "warning" and "󰀪 " or 
            ( e == "hint" and "󰌶 " or "󰋽 ")
          )
        s = s .. n .. sym
      end
      return s
    end
  '';
};

Also, out of scope, might be cool to merge all this bufferline diagnostics options into one.