Bump pm2 from 5.4.3 to 6.0.5

Bumps [pm2](https://github.com/Unitech/pm2) from 5.4.3 to 6.0.5.
- [Release notes](https://github.com/Unitech/pm2/releases)
- [Changelog](https://github.com/Unitech/pm2/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Unitech/pm2/commits/v6.0.5)

---
updated-dependencies:
- dependency-name: pm2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -37,7 +37,7 @@
     "mssql": "^11.0.0",
     "node-cache": "^5.1.2",
     "nodemailer": "^6.9.1",
-    "pm2": "^5.3.0",
+    "pm2": "^6.0.5",
     "winston": "^3.8.2",
     "xml2js": "^0.6.0"
   },