chore: Bump version to `0.16.7+ffmpeg.8.0` #410

Job	Run time
rustfmt_check (macos-latest)	9s
rustfmt_check (windows-latest)	24s
rustfmt_check (ubuntu-latest)	11s
rust_clippy_check_ubuntu	7m 26s
rust_clippy_check_windows	1m 26s
build_static_and_test_ubuntu_with_system_ffmpeg	2m 52s
build_static_and_test_ubuntu	8m 36s
build_dynamic_and_test_macos	3m 11s
build_with_vcpkg_ffmpeg_windows (x86_64-pc-windows-msvc, x64-windows-static-md)	1m 30s
build_dynamic_and_test_ubuntu	3m 22s
build_dynamic_and_test_windows_pre	3m 37s
build_with_vcpkg_ffmpeg_windows (i686-pc-windows-msvc, x86-windows-static, -Ctarget-feature=+crt-...	3m 16s
build_with_vcpkg_ffmpeg_windows (x86_64-pc-windows-msvc, x64-windows-static, -Ctarget-feature=+cr...	1m 28s
build_with_vcpkg_ffmpeg_windows (x86_64-pc-windows-msvc, x64-windows, true)	1m 35s
build_with_vcpkg_ffmpeg_windows (i686-pc-windows-msvc, x86-windows, true)	1m 23s
docs_rs_check	1m 52s
build_with_vcpkg_ffmpeg_windows (i686-pc-windows-msvc, x86-windows-static-md)	1m 27s
build_dynamic_and_test_windows	1m 8s
	44m 53s

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