chore(deps): update actions/attest-sbom action to v2.4.0 (#496)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/attest-sbom](https://redirect.github.com/actions/attest-sbom)
| action | minor | `v2.2.0` -> `v2.4.0` |

---

### Release Notes

<details>
<summary>actions/attest-sbom (actions/attest-sbom)</summary>

###
[`v2.4.0`](https://redirect.github.com/actions/attest-sbom/releases/tag/v2.4.0)

[Compare
Source](https://redirect.github.com/actions/attest-sbom/compare/v2.2.0...v2.4.0)

#### What's Changed

- Bump actions/attest from 2.2.1 to 2.3.0 in the actions-minor group by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/actions/attest-sbom/pull/169](https://redirect.github.com/actions/attest-sbom/pull/169)
- Bump undici from 5.28.5 to 5.29.0 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/actions/attest-sbom/pull/172](https://redirect.github.com/actions/attest-sbom/pull/172)
- Bump actions/attest from 2.3.0 to 2.4.0 by
[@&#8203;bdehamer](https://redirect.github.com/bdehamer) in
[https://github.com/actions/attest-sbom/pull/178](https://redirect.github.com/actions/attest-sbom/pull/178)
- Includes support for the new well-known summary file which will
accumulate paths to all attestations generated in a given workflow run

**Full Changelog**:
actions/attest-sbom@v2.2.0...v2.4.0

</details>

---

### Configuration

📅 **Schedule**: 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

---

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.github/actions/sbom-generator/action.yml

@@ -35,7 +35,7 @@ runs:
         gh release upload ${{ inputs.release-tag }} ./artifacts/sboms/${{ inputs.project-name }}.bom.json
 
     - name: Attest package
-      uses: actions/attest-sbom@115c3be05ff3974bcbd596578934b3f9ce39bf68 # v2.2.0
+      uses: actions/attest-sbom@bd218ad0dbcb3e146bd073d1d9c6d78e08aa8a0b # v2.4.0
       with:
         subject-path: src/**/${{ inputs.project-name }}.*.nupkg
         sbom-path: ./artifacts/sboms/${{ inputs.project-name }}.bom.json