Add missing indices to store db table

What does this MR do?

!2147 (comment 825425756)

We added two indices to the store table fs_betrieb on production but they were not yet added to the dev environment.

How confident are you it won't break things if deployed?

Sure

How to test

1. Checkout branch locally
2. Run ./scripts/docker-compose exec app vendor/bin/phinx migrate
3. Check on http://localhost:18081 that the two indices were added to the columns team_conversation_id and springer_conversation_id

Checklist

• added a test, or explain why one is not needed/possible...
• no unrelated changes
• asked someone for a code review
• set a "for:" label to indicate who will be affected by this change
• added to the next milestone (see https://gitlab.com/foodsharing-dev/foodsharing/-/milestones, unless it has a "for:Dev" label)
• added an entry to CHANGELOG.md
• added a short text that can be used in the release notes
• Once your MR has been merged, you are responsible to create a testing issue in the Beta Testing forum: https://foodsharing.de/?page=bezirk&bid=734&sub=forum. Please change the MRs label to "state:Beta testing".
  • Consider writing a detailed description in German.
  • Describe in a few sentences, what should be tested from a user perspective.
  • Also mention different settings (e.g. different browsers, roles, ...) how this change can be tested.
  • Be aware, that also non technical people should understand.

Release notes text in German