I am wondering when we can drop support for g++-8. All supported operating systems, except for CentOS Stream 8 offer a greater version:

* Ubuntu Focal: gcc 9 (https://packages.ubuntu.com/focal/gcc)
* Debian Bullseye: gcc 10 (https://packages.debian.org/bullseye/gcc)
* CentOS 8 Stream: gcc 8, with EOL of " May 31st, 2024 " (https://www.centos.org/centos-stream/)

The rationale for dropping it would be that there are currently occasional compile failures with perfectly valid C++-17 code, for example:

* `error: call to non-‘constexpr’ function ‘void __assert_fail(const char*, const char*, unsigned int, const char*)’ assert(false);` (https://godbolt.org/z/bxaMnfcsa)
{
        assert(it != m_index.get<ByTxHash>().end());
        
        if (it->GetState() == State::COMPLETED) return true;
        if (IsOnlyNonCompleted(it)) {
            
            uint256 txhash = it->m_txhash;
            do {
                it = Erase<ByTxHash>(it);
            } while (it != m_index.get<ByTxHash>().end() && it->m_txhash == txhash);
            return false;
        }
        
        
        ChangeAndReselect(it, State::COMPLETED);
        return true;
    }
    
    
    
    
    void SetTimePoint(std::chrono::microseconds now, std::vector<std::pair<NodeId, GenTxid>>* expired)