[BUG] Warning in Neovim 0.11.x

[davemackintosh]

Describe the bug
Warnings when using inside of Neovim 0.11.x

vim.lsp.buf_get_clients() is deprecated, use vim.lsp.get_clients() instead. :help deprecated
Feature will be removed in Nvim 0.12
stack traceback:
	/usr/share/nvim/runtime/lua/vim/lsp.lua:1092: in function 'buf_get_clients'
	...l/share/nvim/lazy/tabnine-nvim/lua/tabnine/workspace.lua:15: in function ''
	vim/_editor.lua: in function <vim/_editor.lua:0>

To Reproduce
Steps to reproduce the behavior:

Install on Neovim 0.11.x

Expected behavior
No warnings

Version Info:

• OS (try cat /etc/os-release): Ubuntu 23.10 in WSL2
• Neovim version (nvim -v): 0.11.0
• Installed Tabnine Binaries (ls -A /path/to/plugin/binaries): 4.160.0
• Active Tabnine Binaries (cat /path/to/plugin/binaries/.active): no active directory found

Additional context
Add any other context about the problem here.

[amirbilu]

fixed by #170