List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=5635
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "name": "✨Sunday GO and MORE ✨⛳🌄🌟 Hikaru no Go 🌑⚪️2025",
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