Enable vcpkg-linking on non-windows targets #339

Job	Run time
build_dynamic_and_test_macos	2m 20s
build_dynamic_and_test_ubuntu	1m 53s
build_dynamic_and_test_windows_pre	2m 51s
build_static_and_test_ubuntu	6m 1s
build_static_and_test_ubuntu_with_system_ffmpeg	1m 32s
build_with_vcpkg_ffmpeg_windows (x86_64-pc-windows-msvc, x64-windows-static, -Ctarget-feature=+cr...	19m 12s
docs_rs_check	1m 21s
rust_clippy_check_ubuntu	5m 36s
build_with_vcpkg_ffmpeg_windows (x86_64-pc-windows-msvc, x64-windows-static-md)	19m 29s
rust_clippy_check_windows	17m 17s
build_with_vcpkg_ffmpeg_windows (x86_64-pc-windows-msvc, x64-windows, true)	19m 39s
build_with_vcpkg_ffmpeg_windows (i686-pc-windows-msvc, x86-windows-static, -Ctarget-feature=+crt-...	19m 55s
rustfmt_check (macos-latest)	7s
build_with_vcpkg_ffmpeg_windows (i686-pc-windows-msvc, x86-windows-static-md)	21m 57s
rustfmt_check (windows-latest)	17s
build_with_vcpkg_ffmpeg_windows (i686-pc-windows-msvc, x86-windows, true)	18m 4s
rustfmt_check (ubuntu-latest)	5s
build_dynamic_and_test_windows	3m 30s
	2h 41m 6s

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