Remove Region.IN enum value and related tests

Agent-Logs-Url: https://github.com/Adyen/adyen-java-api-library/sessions/4aa301be-a8b2-4ca3-843f-b2e851f7cbe4

Co-authored-by: gcatanese <1771700+gcatanese@users.noreply.github.com>

copilot-swe-agent[bot] committed 5mo ago

81e9e9639f3fb8d972083b3e8cbc88969644b963

Parent: 2f67cec

Committed by Beppe Catanese <1771700+gcatanese@users.noreply.github.com> on 3/31/2026, 9:56:17 AM