Run ASAN and TSAN with latest stable GCC
#2447 (closed) and #2449 (closed) were identified by Fedora's GCC 10.2.1 but not by GCC 8.3.0 from Debian Buster in out CI images when run with ASAN.
Ditto for #2457 (closed) and #2456 (closed) when run with TSAN.
Given that clang:asan
CI job uses the latest stable Clang, we should do the same with gcc:asan
for GCC. Ditto for gcc:tsan
.
The most straightforward way to do that is to use Fedora, Tumbleweed, or sid image.