chore(deps): update dependency superagent to v8 (#3180)

Author: renovate-bot

experimental/packages/opentelemetry-instrumentation-http/package.json

@@ -66,7 +66,7 @@
     "request-promise-native": "1.0.9",
     "rimraf": "3.0.2",
     "sinon": "14.0.0",
-    "superagent": "6.1.0",
+    "superagent": "8.0.0",
     "ts-mocha": "10.0.0",
     "typescript": "4.4.4"
   },