Update taiki-e/install-action digest to eea29cf (#526)

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@85b24a67ef0c632dfefad70b9d5ce8fddb040754 # v2
+        uses: taiki-e/install-action@eea29cff9a2b68892c0845ae3e4f45fc47ee9354 # v2
         with:
           tool: cargo-readme
       - name: Run cargo readme