chore(deps): update peter-evans/create-pull-request action to v8 (#386)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[peter-evans/create-pull-request](https://redirect.github.com/peter-evans/create-pull-request)
| action | major | `v7` -> `v8` |

---

### Release Notes

<details>
<summary>peter-evans/create-pull-request
(peter-evans/create-pull-request)</summary>

###
[`v8`](https://redirect.github.com/peter-evans/create-pull-request/compare/v7...v8)

[Compare
Source](https://redirect.github.com/peter-evans/create-pull-request/compare/v7...v8)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, 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

---

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View the [repository job
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.github/workflows/dispath-update.yml

@@ -22,7 +22,7 @@ jobs:
           sed -i -E 's|(image: obolnetwork/charon:\$\{CHARON_VERSION:-)v\.?[0-9]+\.[0-9]+\.[0-9]+[a-zA-Z0-9\-]*}|\1v'"${TAG_NAME}"'}|' relay/docker-compose.yml
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v8
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           base: main