Bump thinca/action-setup-vim from 1 to 2

Bumps [thinca/action-setup-vim](https://github.com/thinca/action-setup-vim) from 1 to 2.
- [Release notes](https://github.com/thinca/action-setup-vim/releases)
- [Changelog](https://github.com/thinca/action-setup-vim/blob/master/CHANGELOG.md)
- [Commits](thinca/action-setup-vim@v1...v2)

---
updated-dependencies:
- dependency-name: thinca/action-setup-vim
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/generate.yml

@@ -28,7 +28,7 @@ jobs:
           repository: 'vim-jp/vimdoc-ja'
           ssh-key: ${{ secrets.VIMDOC_JA_SSH_KEY }}
       - name: Setup Vim
-        uses: thinca/action-setup-vim@v1
+        uses: thinca/action-setup-vim@v2
         with:
           vim_version: 'v9.1.0065'
           vim_type: 'Vim'
@@ -86,7 +86,7 @@ jobs:
           ssh-key: ${{ secrets.VIMDOC_JA_SSH_KEY }}
           ref: gh-pages
       - name: Setup Vim
-        uses: thinca/action-setup-vim@v1
+        uses: thinca/action-setup-vim@v2
         with:
           vim_version: 'v9.1.0065'
           vim_type: 'Vim'