Ensure fiber stack is freed in all cases, if the fiber is terminated.… #9534

Job	Run time
cargo test	51s
make (check, --enable-yjit=dev)	13m 21s
make (yjit-bindgen, To fix: use patch in logs, --with-gcc=clang-14 --enable-yjit=dev --enable-zji...	5m 21s
make (check, RUSTC='rustc +1.58.0', 1.58.0)	9m 29s
make (test-bundled-gems, --enable-yjit=dev)	26m 31s
make (check, --enable-yjit=dev, --yjit-call-threshold=1 --yjit-verify-ctx --yjit-code-gc, -T --yj...	17m 4s
cargo clippy	44s
YJIT Ubuntu result	2s
	1h 13m 23s

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