Update catanatron_gym version and deps

[bcollazo]

Updating the Gym API to v26 as per https://gymnasium.farama.org/content/migration-guide/.

[netlify]

✅ Deploy Preview for catanatron-staging canceled.

Name	Link
🔨 Latest commit	8890002
🔍 Latest deploy log	https://app.netlify.com/sites/catanatron-staging/deploys/657494f4bd7f0a00082b9234

[coveralls]

Pull Request Test Coverage Report for Build 7152287115

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 95.871%

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Totals
Change from base Build 7066460947:	0.0%
Covered Lines:	1370
Relevant Lines:	1429

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💛 - Coveralls

[MattS0000]

Any reason for this to be PR to be waiting here? If any work is required to be done, I could probably do it.