[deps] Update fontique dep `roxmltree` to 0.19.0 #23

Job	Run time
cargo clippy (android) (armv7-linux-androideabi)	51s
cargo clippy (android) (aarch64-linux-android)	45s
cargo clippy (android) (x86_64-linux-android)	45s
cargo clippy (windows-latest)	1m 35s
cargo fmt	23s
cargo clippy (macos-14)	51s
cargo check (msrv) (windows-latest)	1m 36s
cargo clippy (ubuntu-latest)	52s
cargo check (msrv) (macos-14)	54s
cargo check (msrv) (android) (armv7-linux-androideabi)	42s
cargo check (msrv) (ubuntu-latest)	42s
cargo check (msrv) (android) (aarch64-linux-android)	39s
cargo doc (windows-latest)	1m 15s
cargo check (msrv) (android) (x86_64-linux-android)	58s
cargo doc (macos-14)	33s
cargo doc (ubuntu-latest)	31s
cargo test (windows-latest)	1m 17s
cargo test (macos-14)	38s
cargo test (ubuntu-latest)	33s
	16m 20s

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