nvim: add a shit ton of packages to mason

.config/nvim/lua/plugins/mason.lua

@@ -2,6 +2,19 @@ return {
 	"williamboman/mason.nvim",
 	build = ":MasonUpdate",
 	config = function()
-		require("mason").setup()
+		require("mason").setup({
+			opts = {
+				ensure_installed = {
+					-- go
+					"gopls",
+					"goimports_reviser",
+					"golangci-lint",
+					-- python
+					"black",
+					"mypy",
+					"pyright",
+				}
+			}
+		})
 	end,
 }