Update dependency @slack/web-api to v7.2.0 (#2145)

[![Mend Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [@slack/web-api](https://slack.dev/node-slack-sdk/web-api) ([source](https://togithub.com/slackapi/node-slack-sdk)) | [`7.1.0` -> `7.2.0`](https://renovatebot.com/diffs/npm/@slack%2fweb-api/7.1.0/7.2.0) | [![age](https://developer.mend.io/api/mc/badges/age/npm/@slack%2fweb-api/7.2.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@slack%2fweb-api/7.2.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@slack%2fweb-api/7.1.0/7.2.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@slack%2fweb-api/7.1.0/7.2.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>slackapi/node-slack-sdk (@&#8203;slack/web-api)</summary>

### [`v7.2.0`](https://togithub.com/slackapi/node-slack-sdk/compare/@slack/web-api@7.1.0...b1dad1383e8c462f921c72f9809e302793bcfd67)

[Compare Source](https://togithub.com/slackapi/node-slack-sdk/compare/@slack/web-api@7.1.0...@slack/web-api@7.2.0)

</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.

---

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

---

This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://developer.mend.io/github/X-oss-byte/Nextjs).