Update taiki-e/install-action digest to ea0eda6 (#351)

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@4575ae687efd0e2c78240087f26013fb2484987f # v2
+        uses: taiki-e/install-action@ea0eda622640ac23a17ba349cf09e2709d58f5e1 # v2
         with:
           tool: cargo-readme
       - name: Run cargo readme