Update taiki-e/install-action digest to 33e32f5 (#190)

Author: nextest-bot

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Lint (rustfmt)
         run: cargo xfmt --check
       - name: Install cargo readme
-        uses: taiki-e/install-action@5b1c1a554482cdcae4eea02315b6fcdb89dd86fb # v2
+        uses: taiki-e/install-action@33e32f55072c61d57aa7ddee0fc8e94f46298976 # v2
         with:
           tool: cargo-readme
       - name: Run cargo readme