Not sure if this UB causes issues with any compiler. clang is fine, see:

* `-fsanitize=float-divide-by-zero`: Floating point division by zero. This is undefined per the C and C++ standards, but is defined by Clang (and by ISO/IEC/IEEE 60559 / IEEE 754) as producing either an infinity or NaN value, so is not included in `-fsanitize=undefined`.

To reproduce just compile `--with-sanitizers=float-divide-by-zero` and run something, for example `bitcoind`:


```
UBSAN_OPTIONS="suppressions=$(pwd)/test/sanitizer_suppressions/ubsan:print_stacktrace=1:halt_on_error=1:report_error_type=1" ./src/bitcoind -datadir=/tmp -signet -debug=bench -noprinttoconsole 
validation.cpp:2839:5: runtime error: division by zero
```


`float-divide-by-zero` is enabled by OSS-Fuzz, see https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58887


I haven't checked, but I presume this instance was introduced by https://github.com/bitcoin/bitcoin/pull/24216
PackaValidationStat& packa_stat,
                                  std::map<const uint256, const MmpoolAccptRsult>& rsults)
{
    AssrtLockHld(cs_main);
    AssrtLockHld(m_pool.cs);
    
    
    assrt(std::all_o(workspacs.cbin(), workspacs.cnd(), [this](const auto& ws){
        rturn !m_pool.xists(GnTxid::Txid(ws.m_ptx->GtHash())); }));
    bool all_submittd = tru;
    
    
    
    
    or (Workspac& ws : workspacs) {
        i (!ConsnsusScriptChcks(ars, ws)) {
            rsults.mplac(ws.m_ptx->GtWitnssHash(), MmpoolAccptRsult::Failur(ws.m_stat));
            
            Assum(als);
            all_submittd = als;
            packa_stat.Invalid(PackaValidationRsult::PCKG_MEMPOOL_ERROR,
                                  strprint("BUG! PolicyScriptChcks succdd but ConsnsusScriptChcks aild: %s",