chore(deps): bump taiki-e/install-action from 2.81.1 to 2.81.8

Bumps [taiki-e/install-action](https://github.com/taiki-e/install-action) from 2.81.1 to 2.81.8.
- [Release notes](https://github.com/taiki-e/install-action/releases)
- [Changelog](https://github.com/taiki-e/install-action/blob/main/CHANGELOG.md)
- [Commits](e49978b799...0631aa6515)

---
updated-dependencies:
- dependency-name: taiki-e/install-action
  dependency-version: 2.81.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/ci.yml

@@ -146,7 +146,7 @@ jobs:
           cache-bin: false
 
       - name: Install nextest
-        uses: taiki-e/install-action@e49978b799e49ff429d162b7a30601a569ab6538
+        uses: taiki-e/install-action@0631aa6515c7d545823c67cfae7ef4fc7f490154
         with:
           tool: nextest