chore(deps): update benchmark-action/github-action-benchmark action to v1.20.4 (#5916)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[benchmark-action/github-action-benchmark](https://redirect.github.com/benchmark-action/github-action-benchmark)
| action | patch | `v1.20.3` -> `v1.20.4` |

---

### Release Notes

<details>
<summary>benchmark-action/github-action-benchmark
(benchmark-action/github-action-benchmark)</summary>

###
[`v1.20.4`](https://redirect.github.com/benchmark-action/github-action-benchmark/blob/HEAD/CHANGELOG.md#v1204---23-Oct-2024)

[Compare
Source](https://redirect.github.com/benchmark-action/github-action-benchmark/compare/v1.20.3...v1.20.4)

- **feat** add typings and validation workflow
([#&#8203;257](https://redirect.github.com/benchmark-action/github-action-benchmark/issues/257))

</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
log](https://developer.mend.io/github/open-telemetry/opentelemetry-go).

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.github/workflows/benchmark.yml

@@ -28,7 +28,7 @@ jobs:
           # So we can fetch the exact benchmark data from the previous commit.
           key: ${{ runner.os }}-benchmark-${{ github.event.before }}
       - name: Store benchmarks result
-        uses: benchmark-action/github-action-benchmark@v1.20.3
+        uses: benchmark-action/github-action-benchmark@v1.20.4
         with:
           name: Benchmarks
           tool: 'go'