Merge branch 'upgrade-deps' into 'master'

Cargo.lock

Cargo.toml

src/client_server/account.rs

src/client_server/alias.rs

src/client_server/directory.rs

src/client_server/membership.rs

src/client_server/room.rs

src/client_server/session.rs

src/client_server/sync.rs

src/client_server/to_device.rs

src/database/appservice.rs

src/database/globals.rs

src/database/key_backups.rs

src/database/media.rs

src/database/pusher.rs

src/database/rooms.rs

src/database/rooms/edus.rs

src/database/transaction_ids.rs

src/database/uiaa.rs

src/database/users.rs