Update taiki-e/install-action digest to 67cc679 (#335)

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@01548646b508174da6dd38eafe7a5909d7cfe11d # v2
+        uses: taiki-e/install-action@67cc679904bee382389bf22082124fa963c6f6bd # v2
         with:
           tool: cargo-readme
       - name: Run cargo readme