refactor: bump tough-cookie and @parse/push-adapter

Removes [tough-cookie](https://github.com/salesforce/tough-cookie). It's no longer used after updating ancestor dependency [@parse/push-adapter](https://github.com/parse-community/parse-server-push-adapter). These dependencies need to be updated together.


Removes `tough-cookie`

Updates `@parse/push-adapter` from 6.11.0 to 7.0.0
- [Release notes](https://github.com/parse-community/parse-server-push-adapter/releases)
- [Changelog](https://github.com/parse-community/parse-server-push-adapter/blob/master/CHANGELOG.md)
- [Commits](parse-community/parse-server-push-adapter@6.11.0...7.0.0)

---
updated-dependencies:
- dependency-name: tough-cookie
  dependency-version: 
  dependency-type: indirect
- dependency-name: "@parse/push-adapter"
  dependency-version: 7.0.0
  dependency-type: direct:production
...

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Author: dependabot[bot]