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test on trio, fix all missing aclose related warnings ( 1960)

test on trio, fix all missing aclose related warnings ( 1960): a task in repo2rlenv-commit-runtime-v2 (Harbor dataset). Title: Missing aclose() calls cause resource warnings when using async generators

The task

**Title:** Missing `aclose()` calls cause resource warnings when using async generators

Part of FineEnvs/repo2rlenv-commit-runtime.