chore(ci): update schubydoo/shared-workflows digest to e21773e (#1795)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| schubydoo/shared-workflows
([changelog](/compare/15fc559e1da9200eb9a310b31d2fb7c4cf8cd8f7..e21773edbd38e19c52ff78637cff3bc68fbc5eaf))
| workflow | digest | `15fc559` → `e21773e` |

---

### Configuration

📅 **Schedule**: (in timezone America/Los_Angeles)

- Branch creation
  - At any time (no schedule defined)
- Automerge
  - At any time (no schedule defined)

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Mend Renovate
CLI](https://redirect.github.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0NC4xODguMiIsInVwZGF0ZWRJblZlciI6IjQ0LjE4OC4yIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJkZXBlbmRlbmNpZXMiXX0=-->

Co-authored-by: renokeeper[bot] <308156799+renokeeper[bot]@users.noreply.github.com>

Author: renokeeper[bot]

.github/workflows/claude-review.yml

@@ -19,7 +19,7 @@ jobs:
       issues: write
       id-token: write
       actions: read
-    uses: schubydoo/shared-workflows/.github/workflows/claude-review.yml@15fc559e1da9200eb9a310b31d2fb7c4cf8cd8f7 # main
+    uses: schubydoo/shared-workflows/.github/workflows/claude-review.yml@e21773edbd38e19c52ff78637cff3bc68fbc5eaf # main
     secrets:
       app-client-id: ${{ secrets.CLAUSTER_CI_APP_CLIENT_ID }}
       app-private-key: ${{ secrets.CLAUSTER_CI_APP_PRIVATE_KEY }}