chore(deps-dev): bump @types/sinon from 17.0.4 to 21.0.0 in /packages/socket-mode in the dev-sinon group (#2432)

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

Author: dependabot[bot]

packages/socket-mode/package.json

@@ -62,7 +62,7 @@
     "@types/chai": "^4",
     "@types/mocha": "^10",
     "@types/proxyquire": "^1.3.31",
-    "@types/sinon": "^17",
+    "@types/sinon": "^21",
     "c8": "^10.1.2",
     "chai": "^4",
     "mocha": "^11",