chore(deps): update @slack/web-api requirement from ^7.8.0 to ^7.9.1 (#2473)

Author: dependabot[bot]

package.json

@@ -46,7 +46,7 @@
     "@slack/oauth": "^3.0.2",
     "@slack/socket-mode": "^2.0.4",
     "@slack/types": "^2.14.0",
-    "@slack/web-api": "^7.8.0",
+    "@slack/web-api": "^7.9.1",
     "axios": "^1.8.3",
     "express": "^5.0.0",
     "path-to-regexp": "^8.1.0",