deps(tombi-toml/setup-tombi): update tombi-toml/setup-tombi to v1.2.0 (#4645)

This PR contains the following updates:

| Package | Type | Update | Change | Pending |
|---|---|---|---|---|
|
[tombi-toml/setup-tombi](https://redirect.github.com/tombi-toml/setup-tombi)
| action | minor | `v1.1.6` → `v1.2.0` | `v1.2.4` (+4) |

---

### Release Notes

<details>
<summary>tombi-toml/setup-tombi (tombi-toml/setup-tombi)</summary>

###
[`v1.2`](https://redirect.github.com/tombi-toml/setup-tombi/compare/v1.2.0...v1.2.0)

[Compare
Source](https://redirect.github.com/tombi-toml/setup-tombi/compare/v1.2.0...v1.2.0)

###
[`v1.2.0`](https://redirect.github.com/tombi-toml/setup-tombi/releases/tag/v1.2.0)

[Compare
Source](https://redirect.github.com/tombi-toml/setup-tombi/compare/v1.1.7...v1.2.0)

This setup-tombi release matches [tombi
v1.2.0](https://redirect.github.com/tombi-toml/tombi/releases/tag/v1.2.0).

**Full Changelog**:
<tombi-toml/setup-tombi@v1...v1.2.0>

###
[`v1.1.7`](https://redirect.github.com/tombi-toml/setup-tombi/releases/tag/v1.1.7)

[Compare
Source](https://redirect.github.com/tombi-toml/setup-tombi/compare/v1.1.6...v1.1.7)

This setup-tombi release matches [tombi
v1.1.7](https://redirect.github.com/tombi-toml/tombi/releases/tag/v1.1.7).

**Full Changelog**:
<tombi-toml/setup-tombi@v1...v1.1.7>

</details>

---

### Configuration

📅 **Schedule**: (UTC)

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

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

♻ **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 was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/cowprotocol/services).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4yNjUuMSIsInVwZGF0ZWRJblZlciI6IjQzLjI3Mi40IiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6W119-->

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/pull-request.yaml

@@ -24,7 +24,7 @@ jobs:
       - uses: extractions/setup-just@53165ef7e734c5c07cb06b3c8e7b647c5aa16db3 # v4.0.0
         with:
           just-version: 1.39.0
-      - uses: tombi-toml/setup-tombi@c0035bf190feee444a3a8da06990959e72058808 # v1.1.6
+      - uses: tombi-toml/setup-tombi@fa8fb98ef9af2d3b9da565edc15935d523bca7e9 # v1.2.0
         with:
           version: "1.1.0"
       - run: |
@@ -330,7 +330,7 @@ jobs:
       - uses: extractions/setup-just@53165ef7e734c5c07cb06b3c8e7b647c5aa16db3 # v4.0.0
         with:
           just-version: 1.39.0
-      - uses: tombi-toml/setup-tombi@c0035bf190feee444a3a8da06990959e72058808 # v1.1.6
+      - uses: tombi-toml/setup-tombi@fa8fb98ef9af2d3b9da565edc15935d523bca7e9 # v1.2.0
         with:
           version: "1.1.0"
       - name: Verify the code hasn't been tampered with by generating contracts again and making sure there has been no changes