bug: fasthttpadaptor writer leak, data race, and crash on handler panic ( 2246) ( 2278)

bug: fasthttpadaptor writer leak, data race, and crash on handler panic ( 2246) ( 2278): a task in repo2rlenv-commit-runtime-v2 (Harbor dataset). Title: fasthttpadaptor: writer leak, data race, and crash when handler panics