On 2019-12-09 GitHub Actions virtual environments has been upgraded to Visual Studio 16.4.0.
This causes errors:
0 6>LINK : fatal error C1047: The object or library file 'C:\vcpkg\installed\x64-windows-static\lib\libzmq-mt-s-4_3_3.lib' was created with an older compiler than other objects; rebuild old objects and libraries [D:\a\bitcoin\bitcoin\build_msvc\bitcoind\bitcoind.vcxproj]
1 6>LINK : fatal error LNK1257: code generation failed [D:\a\bitcoin\bitcoin\build_msvc\bitcoind\bitcoind.vcxproj]
Updating Qt binaries (#17736) and removing zeromq
package from build_msvc/vcpkg-packages.txt
did not help.