chore(deps): update rhysd/action-setup-vim action to v1.6.0 (#70)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
           path: vim-themis
       - name: setup vim
         id: vim
-        uses: rhysd/action-setup-vim@46cf85a6076d2028f9e8cdbb77ccf04816ac88f6 # v1.5.1
+        uses: rhysd/action-setup-vim@19e3dd31a84dbc2c5445d65e9b363f616cab96c1 # v1.6.0
         with:
           neovim: ${{ matrix.neovim }}
           version: ${{ matrix.version }}