Uses a method script in the Propolis zone to make it self-assembling.

This should, along with a corresponding Omicron change, avoid the need to `zlogin` to the Propolis zone at any point.

Related to: oxidecomputer/omicron#3456

Bump crucible rev to pick up:

- fix build break caused by merging #801
- Issue extent flushes in parallel
- Add Logger Option to Volume construct method
- Update Rust crate libc to 0.2.147
- Update Rust crate percent-encoding to 2.3
- Retry jobs until they succeed
- Reorder select arms so pings can't be starved out
- Treat a skipped IO like an error IO for ACK results.
- Retry pantry requests
- Remove panics and asserts in dummy tests
- Update Rust crate csv to 1.2.2
- Update Rust crate reedline to 0.21.0
- Set open file resource limit to the max
- Update Rust crate ringbuffer to 0.14
- DTrace meet cmon
- Widen assert values to u128 to deal with u64::MAX
- Change size_to_validate from usize to u64
- Turn on live-repair test in CI
- Increase flush_timeout for some tests, collect cores
- Update to latest dropshot

Bump propolis rev to pick up:

- Bump crucible rev to latest
- Make the propolis zone self-assembling
- Flesh out more PIIX3-PM to suppress log gripes
- Bump crucible rev to latest
- Restructure PM-timer under PIIX3 device
- Fix inventory handling for nested child entities
- Centralize vmm-data interface into bhyve_api
- Clean up PCI device classes
- Update openssl dep to 0.10.55
- Allow propolis-standalone to use VMM reservoir
- only allow one request to reboot to be enqueued at a time

Note that #3456 bumped package-manifest, but this commit bumps both that
and Cargo.toml. All Propolis commits between 04a27573 and 25111a88 are
listed above.