build(deps): bump taiki-e/install-action from 2.69.3 to 2.69.6

Bumps [taiki-e/install-action](https://github.com/taiki-e/install-action) from 2.69.3 to 2.69.6.
- [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@c12d62a...0620367)

---
updated-dependencies:
- dependency-name: taiki-e/install-action
  dependency-version: 2.69.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

.github/workflows/rs_ci.yml

@@ -135,7 +135,7 @@ jobs:
       - uses: actions-rust-lang/setup-rust-toolchain@150fca883cd4034361b621bd4e6a9d34e5143606 # v1.15.4
         with:
           cache: false
-      - uses: taiki-e/install-action@c12d62a803cbdfe2e7263af15f5a9548065cb4f2 # v2.69.3
+      - uses: taiki-e/install-action@06203676c62f0d3c765be3f2fcfbebbcb02d09f5 # v2.69.6
         with:
           tool: nextest@0.9
       - uses: mozilla-actions/sccache-action@7d986dd989559c6ecdb630a3fd2557667be217ad # v0.0.9