Update taiki-e/install-action digest to 4351b0c (#315)

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@5140f853a1cdf11adb558a08d00d06d67af3dea4 # v2
+        uses: taiki-e/install-action@4351b0c7eac445cb6f5a730526fcaef1473d3ea6 # v2
         with:
           tool: cargo-readme
       - name: Run cargo readme