Update taiki-e/install-action digest to e825cea (#360)

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@bf2f998095ccb464eb8b85eeb95a460ccd744ec4 # v2
+        uses: taiki-e/install-action@e825cea3ae7859bea8ac6c1c1ecde4d7699f05b6 # v2
         with:
           tool: cargo-readme
       - name: Run cargo readme