nvim: Track master for plenary

Ensure that we run the master branch version of plenary and do not
adhere to any versioned release since the newest is now multiple years
back.

nvim/.config/nvim/lua/plugins/base.lua

@@ -251,4 +251,6 @@ return {
 	{ "stevearc/stickybuf.nvim", config = true },
 	-- make it a little less painful to open really big (>2mb) files by disabling features
 	-- { "LunarVim/bigfile.nvim", lazy = false },
+	-- set plenary to follow master branch here, but let individual plugins actually load it
+	{ "nvim-lua/plenary.nvim", version = false, optional = true },
 }