chore(deps): update dependency sinon to v18 (#109)

Signed-off-by: Jaremy Hatler <hatler.jaremy@gmail.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Jaremy Hatler <hatler.jaremy@gmail.com>

Author: renovate[bot]

package-lock.json

@@ -45,7 +45,7 @@
     "lru-cache": "^7.14.0",
     "mocha": "^10.0.0",
     "nock": "^13.2.9",
-    "sinon": "^15.0.0",
+    "sinon": "^18.0.0",
     "smee-client": "^1.2.5",
     "typescript": "<5.2.0"
   },