fix: upgrade axios from 1.6.5 to 1.6.7

Snyk has created this PR to upgrade axios from 1.6.5 to 1.6.7.

See this package in npm:
https://www.npmjs.com/package/axios

See this project in Snyk:
https://app.snyk.io/org/sswietoniowski/project/c4fde6b3-13e3-462b-b325-9990f3ceb289?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

projects/react/08_conference_speakers/package-lock.json

@@ -12,7 +12,7 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "axios": "^1.6.5",
+    "axios": "^1.6.7",
     "next": "^13.5.6",
     "react": "^18.2.0",
     "react-bootstrap": "^2.10.0",