update README.md (mypy 1.10.0)

README.md

@@ -20,7 +20,7 @@ In your GitHub Actions workflow, use this action like so:
 
 ```yaml
       - name: Install mypy from PyPI
-        uses: install-pinned/mypy@8e04184cd1c50fe90850d20d0f79b80012742d5d  # 1.10.0
+        uses: install-pinned/mypy@afa6e92d97a7d0525672d2e53c76cd6a31a99100  # 1.10.0
 ```
 
 You can [set up Dependabot](https://docs.github.com/en/code-security/dependabot/working-with-dependabot/keeping-your-actions-up-to-date-with-dependabot#example-dependabotyml-file-for-github-actions)