Snippets for libdigidocpp 4.5.0 from Nix aarch64-linux

Sourced from https://hydra.nixos.org/log/lgw56bxm3zazvix6s5rzgxml8286isia-libdigidocpp-4.5.0.drv.

• /build/source/src/Signature.cpp:269:47: warning: 'virtual digidoc::X509Cert digidoc::Signature::ArchiveTimeStampCertificate() const' is deprecated [-Wdeprecated-declarations]
    269 |     if(auto cert = ArchiveTimeStampCertificate())
        |                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~
  

• /build/source/src/Signature.cpp:270:55: warning: 'virtual std::string digidoc::Signature::ArchiveTimeStampTime() const' is deprecated [-Wdeprecated-declarations]
    270 |         return {{std::move(cert), ArchiveTimeStampTime()}};
        |                                   ~~~~~~~~~~~~~~~~~~~~^~