Try out https://github.com/tnull/uniffi-bindgen-go/tree/2026-01-upgrade-to-0.29

[Johennes]

This is to try out NordSecurity/uniffi-bindgen-go#86.

With these changes applied the tests appear to pass for me locally:

$ COMPLEMENT_CRYPTO_TEST_CLIENT_MATRIX=rr \
COMPLEMENT_BASE_IMAGE=ghcr.io/matrix-org/synapse-service:v1.117.0 \
LIBRARY_PATH=$LIBRARY_PATH:_temp_rust_sdk/target/debug \
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:_temp_rust_sdk/target/debug \
go test -v -count=1 -tags=rust -timeout 15m ./tests

...

    rust.go:518: @user-156-alice:hs1: Stopping sync service
    to_device_test.go:350: [@user-157-bob:hs1](rust) Close
    to_device_test.go:350: [@user-156-alice:hs1](rust) Close
--- PASS: TestToDeviceMessagesArentLostWhenKeysQueryFails (5.19s)
    --- PASS: TestToDeviceMessagesArentLostWhenKeysQueryFails/rust (5.19s)
=== RUN   TestToDeviceMessagesAreProcessedInOrder
=== RUN   TestToDeviceMessagesAreProcessedInOrder/rust
    to_device_test.go:424: flakey
--- PASS: TestToDeviceMessagesAreProcessedInOrder (0.00s)
    --- SKIP: TestToDeviceMessagesAreProcessedInOrder/rust (0.00s)
=== RUN   TestVerificationSAS
=== RUN   TestVerificationSAS/{rust_hs1}|{rust_hs1}
    verification_test.go:62: rust cannot be a verifiee yet, see https://github.com/matrix-org/matrix-rust-sdk/issues/3595
--- PASS: TestVerificationSAS (0.00s)
    --- SKIP: TestVerificationSAS/{rust_hs1}|{rust_hs1} (0.00s)
PASS
2026/02/16 15:21:29 🐳 Stopping container: 0773fcc8a206
2026/02/16 15:21:29 ✅ Container stopped: 0773fcc8a206
2026/02/16 15:21:29 🐳 Terminating container: 0773fcc8a206
2026/02/16 15:21:29 🚫 Container terminated: 0773fcc8a206
ok  	github.com/matrix-org/complement-crypto/tests	179.778s

[kegsay]

CI passes so LGTM.

You can either keep it pinned to the tnull fork or wait for the Nord review, but you may be waiting a while.