Release gdb14-v6
How to reproduce build
git clone --recursive https://github.com/yandex/toolchain-registry.git /ix
cd /ix
git checkout 29085bdbacf3a977f3f7e0e53f553dd1445da84f
export PATH=${PWD}:${PATH}
export IX_ROOT=/ix
export IX_EXEC_KIND=local
ix mut output --materialize gdb/14 --target={{TARGET}}