build(deps): Bump taiki-e/install-action from 2.45.14 to 2.46.4

Bumps [taiki-e/install-action](https://github.com/taiki-e/install-action) from 2.45.14 to 2.46.4.
- [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@ec9269c...acf70b3)

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

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

.github/workflows/ci.yml

@@ -80,7 +80,7 @@ jobs:
           override: true
 
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@ec9269c9ddb8f79f082e226dcbb74bfb4c652ab1 # v2.45.14
+        uses: taiki-e/install-action@acf70b3a1ed953bccebc8c5d80cfdb16ec8ccc36 # v2.46.4
         with:
           tool: cargo-llvm-cov