Update `rusty_ffmpeg` to `0.16.1` #462

Job	Run time
rust_clippy_check_ubuntu	5m 34s
docs_rs_check	55s
build_dynamic_and_test_windows_pre	6m 24s
build_static_and_test_ubuntu (release/6.0, nightly, no valgrind)	6m 37s
build_static_and_test_ubuntu (release/6.0, 1.70.0, no valgrind)	6m 41s
rust_clippy_check_windows	19m 48s
rustfmt_check (macos-latest)	8s
build_static_and_test_ubuntu (release/6.1, nightly, no valgrind)	7m 12s
rustfmt_check (windows-latest)	16s
build_static_and_test_ubuntu (release/6.1, 1.70.0, no valgrind)	7m 19s
rustfmt_check (ubuntu-latest)	5s
build_static_and_test_ubuntu (release/7.0, nightly, valgrind)	44m 55s
build_static_and_test_ubuntu (release/7.0, nightly, no valgrind)	7m 47s
build_static_and_test_ubuntu (release/7.0, 1.70.0, no valgrind)	7m 10s
build_dynamic_and_test_windows (nightly)	1m 21s
build_dynamic_and_test_windows (1.70.0)	1m 28s
	2h 3m 40s

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