Use Fedora image for ASAN and TSAN CI jobs; drop TSan suppressions
For the sake of running ASAN and TSAN jobs with the latest stable GCC, replace "base image" (Debian Buster with GCC 8.3.0) with Fedora 34 image with GCC 11.1.1.
Requires https://gitlab.isc.org/isc-projects/images/-/merge_requests/112 to be merged first.
Validation run of ASan and TSan with custom libuv: https://gitlab.isc.org/isc-projects/bind9/-/pipelines/75621
Validation run of TSan with dnstap (suppression off): https://gitlab.isc.org/isc-projects/bind9/-/pipelines/75992
Closes #2458 (closed)
Edited by Michal Nowak