wait for the db init & upgrade

[zachliu]

What type of PR is this?

• [x] Refactor
• [ ] Feature
• [ ] Bug Fix
• [ ] New Query Runner (Data Source)
• [ ] New Alert Destination
• [ ] Other

Description

The sleep is for https://github.com/getredash/redash/pull/7166. Otherwise the docker compose run cypress yarn cypress db-seed finds the database not ready.

How is this tested?

• [ ] Unit tests (pytest, jest)
• [x] E2E Tests (Cypress)
• [x] Manually
• [ ] N/A

Related Tickets & Documents

Mobile & Desktop Screenshots/Recordings (if there are UI changes)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 64.20%. Comparing base (a2611b8) to head (004cb6d). Report is 22 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #7167 +/- ## ========================================== + Coverage 64.15% 64.20% +0.05% ========================================== Files 162 162 Lines 13295 13309 +14 Branches 1883 1886 +3 ========================================== + Hits 8529 8545 +16 + Misses 4432 4431 -1 + Partials 334 333 -1 ``` [see 2 files with indirect coverage changes](https://app.codecov.io/gh/getredash/redash/pull/7167/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getredash)

[justinclift]

k, I guess we can try this and see how it goes with #7166. I'm not personally a fan of using sleep statements, but we can figure out something better later on if it turns out to be needed.