chore(deps): bump axios and pm2

Removes [axios](https://github.com/axios/axios). It's no longer used after updating ancestor dependency [pm2](https://github.com/Unitech/pm2). These dependencies need to be updated together.


Removes `axios`

Updates `pm2` from 5.3.0 to 5.3.1
- [Release notes](https://github.com/Unitech/pm2/releases)
- [Changelog](https://github.com/Unitech/pm2/blob/master/CHANGELOG.md)
- [Commits](Unitech/pm2@5.3.0...v5.3.1)

---
updated-dependencies:
- dependency-name: axios
  dependency-type: indirect
- dependency-name: pm2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -24,7 +24,7 @@
   "dependencies": {
     "dotenv": "^16.4.0",
     "pg": "^8.11.3",
-    "pm2": "^5.3.0",
+    "pm2": "^5.3.1",
     "telegraf": "^4.15.0",
     "winston": "^3.11.0",
     "winston-daily-rotate-file": "^4.7.1"