build(deps): bump taiki-e/install-action from 2.21.7 to 2.21.25

Bumps [taiki-e/install-action](https://github.com/taiki-e/install-action) from 2.21.7 to 2.21.25.
- [Release notes](https://github.com/taiki-e/install-action/releases)
- [Changelog](https://github.com/taiki-e/install-action/blob/main/CHANGELOG.md)
- [Commits](taiki-e/install-action@v2.21.7...v2.21.25)

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

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

.github/workflows/deploy-docs.yml

@@ -18,7 +18,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Install mdbook
-        uses: taiki-e/install-action@v2.21.7
+        uses: taiki-e/install-action@v2.21.25
         with:
           tool: mdbook,mdbook-mermaid
       - name: Deploy GitHub Pages

.github/workflows/llvm-cov.yml

@@ -39,7 +39,7 @@ jobs:
       - uses: Swatinem/rust-cache@v2
 
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@v2.21.7
+        uses: taiki-e/install-action@v2.21.25
         with:
           tool: cargo-llvm-cov