chore(deps): bump @slack/web-api from 7.0.2 to 7.0.4

Bumps [@slack/web-api](https://github.com/slackapi/node-slack-sdk) from 7.0.2 to 7.0.4.
- [Release notes](https://github.com/slackapi/node-slack-sdk/releases)
- [Commits](https://github.com/slackapi/node-slack-sdk/compare/@slack/[email protected]...@slack/[email protected])

---
updated-dependencies:
- dependency-name: "@slack/web-api"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -37,7 +37,7 @@
         "nodecg-io-tsconfig": "^1.0.0"
     },
     "dependencies": {
-        "@slack/web-api": "^7.0.2",
+        "@slack/web-api": "^7.0.4",
         "nodecg-io-core": "^0.3.0"
     }
 }