Upgrade: libsigc++20 version to 2.12.1#11046

LeoMar4 merged 2 commits intomicrosoft:3.0-devmicrosoft/azurelinux:3.0-devfrom

SumitJenaHCL:topic_libsigc++20SumitJenaHCL/azurelinux:topic_libsigc++20Copy head branch name to clipboard