Update taiki-e/install-action digest to a433d87 (#235)

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@351cce3d3afa3dbd66bbe6d30df1d481b1448522 # v2
+        uses: taiki-e/install-action@a433d87f121760c7447ab86390794f9a2dce31cf # v2
         with:
           tool: cargo-readme
       - name: Run cargo readme