deps(dev): bump sinon from 14.0.2 to 15.0.0 (libp2p#287)

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

Author: dependabot[bot]

package.json

@@ -192,7 +192,7 @@
     "aegir": "^37.0.12",
     "benchmark": "^2.1.4",
     "protons": "^6.0.0",
-    "sinon": "^14.0.0",
+    "sinon": "^15.0.0",
     "util": "^0.12.3",
     "wherearewe": "^2.0.1"
   },