Revert "Bump gamma client version"

[affe4ever]

Reverts #112, något borka :(

[HampusSiik]

I was there. It bork.

[affe4ever]

Inte borked längre :)

Detta var errorn:
[2025-09-23T18:46:48Z ERROR backend::handlers::auth] [Gamma auth] Failed to exchange code for auth token, err: ErrorResponse { context: "Get token endpoint", status: 400, body_str: "{"error":"invalid_grant"}" }