Update taiki-e/install-action digest to 0be4756 (#390)

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@6cc14f7f2f4b3129aff07a8b071d2d4f2733465d # v2
+        uses: taiki-e/install-action@0be4756f42223b67aa4b7df5effad59010cbf4b9 # v2
         with:
           tool: cargo-readme
       - name: Run cargo readme