chore(#2787): minimum nvim version 0.9, replace 0.10 deprecated, enable deprecated warnings (#2788)

* refactor(#2787): replace deprecated

* refactor(#2787): enable deprecated checks

* refactor(#2787): replace deprecated

* refactor(#2787): replace deprecated

* refactor(#2787): replace deprecated

* refactor(#2787): replace deprecated

* refactor(#2787): use inline deprecation disabling

* refactor(#2787): replace deprecated

* refactor(#2787): replace deprecated

* refactor(#2787): replace deprecated

* refactor(#2787): replace deprecated

* refactor(#2787): replace deprecated

* refactor(#2787): replace deprecated

* refactor(#2787): replace deprecated

* refactor(#2787): replace deprecated

* refactor(#2787): replace deprecated

* refactor(#2787): deprecated are now warnings

* refactor(#2787): 0.9 is the minimum supported version

* Revert "refactor(#2787): replace deprecated"

This reverts commit b6b4c32fcb.

* refactor(#2787): suppress deprecated until 0.11

* refactor(#2787): minimum nvim version 0.8 -> 0.9

* refactor(#2787): reset globals

* refactor(#2787): explicitly check for vim.diagnostic.is_enabled function presence

lua/nvim-tree/utils.lua

@@ -226,7 +226,14 @@ function M.rename_loaded_buffers(old_path, new_path)
         vim.api.nvim_buf_set_name(buf, new_path .. buf_name:sub(#old_path + 1))
         -- to avoid the 'overwrite existing file' error message on write for
         -- normal files
-        if vim.api.nvim_buf_get_option(buf, "buftype") == "" then
+        local buftype
+        if vim.fn.has "nvim-0.10" == 1 then
+          buftype = vim.api.nvim_get_option_value("buftype", { buf = buf })
+        else
+          buftype = vim.api.nvim_buf_get_option(buf, "buftype") ---@diagnostic disable-line: deprecated
+        end
+
+        if buftype == "" then
           vim.api.nvim_buf_call(buf, function()
             vim.cmd "silent! write!"
             vim.cmd "edit"