chore(deps): bump @slack/types from 2.20.1 to 2.21.1 (#2915)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -50,7 +50,7 @@
     "@slack/logger": "^4.0.1",
     "@slack/oauth": "^3.0.5",
     "@slack/socket-mode": "^2.0.7",
-    "@slack/types": "^2.20.1",
+    "@slack/types": "^2.21.1",
     "@slack/web-api": "^7.15.1",
     "axios": "^1.12.0",
     "express": "^5.0.0",