chore(deps-dev): bump sinon from 19.0.5 to 20.0.0 in /packages/socket-mode in the dev-sinon group (#2203)

Author: dependabot[bot]

packages/socket-mode/package.json

@@ -68,7 +68,7 @@
     "nodemon": "^3.1.0",
     "proxyquire": "^2.1.3",
     "shx": "^0.4.0",
-    "sinon": "^19",
+    "sinon": "^20",
     "source-map-support": "^0.5.21",
     "ts-node": "^10",
     "typescript": "5.7.3"