fix: Explicitly add treesitter for testing

Author: Andrew Ferrier

.github/workflows/unittest.yaml

@@ -26,6 +26,7 @@ jobs:
       - name: Install plenary
         run: |
           git clone --depth 1 https://github.com/nvim-lua/plenary.nvim ~/.local/share/nvim/site/pack/vendor/start/plenary.nvim
+          git clone --depth 1 https://github.com/nvim-treesitter/nvim-treesitter ~/.local/share/nvim/site/pack/vendor/start/nvim-treesitter
           ln -s $(pwd) ~/.local/share/nvim/site/pack/vendor/start
 
       - name: Run tests

tests/minimal.vim

@@ -3,4 +3,5 @@ set noswapfile
 
 set rtp+=../plenary.nvim
 set rtp+=../debugprint.nvim
+set rtp+=../treesitter.nvim
 runtime! plugin/plenary.vim