[Better Touch Tool][1] (BTT) can be used to do this.

Open the BTT configuration window. Select `Keyboard Shortcuts` from the top dropdown list. There are two plus sign buttons at the bottom of the window, click the rightmost to `Add a New Trigger`. Enter a keyboard shortcut as the `Tigger Name` (mine is `⇧⌃⌥⌘ C`; note that I've mapped the modifiers to the capslock key as a "hyperkey"). Then in the Action Configuration panel, select the `macOS Functionality` section, and then the `Add New Space to Mission Control` action.

This shows my setup:

[![enter image description here][2]][2]


  [1]: https://folivora.ai
  [2]: https://i.sstatic.net/5jjfH.png