ZJIT: Prefer raw pointer over references in with_ruby_vm() #9666

Job	Run time
cargo test	1m 14s
make (check, --enable-yjit=dev, --yjit-call-threshold=1 --yjit-verify-ctx --yjit-code-gc, -T --yj...	12m 52s
make (check, RUSTC='rustc +1.58.0', 1.58.0)	9m 0s
make (test-bundled-gems, --enable-yjit=dev)	12m 40s
cargo clippy	42s
make (yjit-bindgen, To fix: use patch in logs, --with-gcc=clang-14 --enable-yjit=dev --enable-zji...	5m 10s
make (check, --enable-yjit=dev)	12m 29s
YJIT Ubuntu result	2s
	54m 9s

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