FIx failed E2E Tests

[ryota-murakami]

In Playwright Admin Tests, Playwright Selfhost Tests, Playwright Visitor Tests Github Actions failed following error.

Run pnpm exec playwright test admin.spec.ts

Running 7 tests using 1 worker
×°°°°°°F°°°°°°

  1) [Chromium] › admin.spec.ts:1[5](https://github.com/laststance/nsx/actions/runs/9505743091/job/26201323392#step:9:6):7 › login & logout › show login button ──────────────────────────

    Error: Command failed: pnpm db:reset
    Error: P101[7](https://github.com/laststance/nsx/actions/runs/9505743091/job/26201323392#step:9:8): Server has closed the connection.


    Error: Command failed: pnpm db:reset
    Error: P1017: Server has closed the connection.

This might be MySQL container issue.
We have to get container log of mysql:8.1(compose.yml) and detect what cause this issue, and finally fix.