Upgrade Ruma

Cargo.lock

Cargo.toml

rust-toolchain

src/client_server/account.rs

src/client_server/device.rs

src/client_server/directory.rs

src/client_server/keys.rs

src/client_server/membership.rs

src/client_server/profile.rs

src/client_server/redact.rs

src/client_server/room.rs

src/client_server/session.rs

src/client_server/state.rs

src/client_server/sync.rs

src/database/admin.rs

src/database/pusher.rs

src/database/rooms.rs

src/database/sending.rs

src/database/uiaa.rs

src/pdu.rs