Add allowFinally flag to catch-or-return

Add allowFinally flag to catch-or-return: a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). Add allowFinally flag to catch-or-return Description I would like the option to allow a finally() method to follow a catch() and still result in a passing catch-or-return rule. This is…