When compiling without external signer support, the resulted `bench_bitcoin.exe` fails on Windows:
```
>.\bench_bitcoin.exe -filter=AddrManSelectByNetwork
Error: bad optional access
```

Steps to reproduce the failure:
- cross compiling on Ubuntu 22.04:
```
$ make -j $(nproc) -C depends HOST=x86_64-w64-mingw32 NO_QT=1
$ ./autogen.sh
$ ./configure CONFIG_SITE=$PWD/depends/x86_64-w64-mingw32/share/config.site --disable-external-signer
$ make -j $(nproc)
```
- compiling natively on Windows:

Apply the diff as follows:
```diff
--- a/build_msvc/bitcoin_config.h.in
+++ b/build_msvc/bitcoin_config.h.in
@@ -41,9 +41,6 @@
 /* Define this symbol to enable ZMQ functions */
 #define ENABLE_ZMQ 1
 
-/* define if external signer support is enabled (requires Boost::Process) */
-#define ENABLE_EXTERNAL_SIGNER /**/
-
 /* Define to 1 if you have the declaration of `be16toh', and to 0 if you
    don't. */
 #define HAVE_DECL_BE16TOH 0
```
Then
```
>py -3 build_msvc\msvc-autogen.py
>msbuild build_msvc\bitcoin.sln -property:Configuration=Release -verbosity:minimal
>src\bench_bitcoin.exe -filter=AddrManSelectByNetwork
Error: bad optional access
```

---

The failure does not manifest itself when running `bench_bitcoin.exe` using Wine on Linux.
BOOST_CHECK_EQUAL(ParseMoney("0.00000001 ").value(), COIN/100000000);
    BOOST_CHECK_EQUAL(ParseMoney(" 0.00000001").value(), COIN/100000000);
    
    BOOST_CHECK(!ParseMoney("100000000.00"));
    BOOST_CHECK(!ParseMoney("0.000000001"));
    
    BOOST_CHECK(!ParseMoney(""));
    BOOST_CHECK(!ParseMoney(" "));
    BOOST_CHECK(!ParseMoney("  "));
    
    BOOST_CHECK(!ParseMoney(".."));
    BOOST_CHECK(!ParseMoney("0..0"));
    BOOST_CHECK(!ParseMoney("1 2"));
    BOOST_CHECK(!ParseMoney(" 1 2 "));
    BOOST_CHECK(!ParseMoney(" 1.2 3 "));
    BOOST_CHECK(!ParseMoney(" 1 2.3 "));
    
    BOOST_CHECK(!ParseMoney(" -1 .2  "));
    BOOST_CHECK(!ParseMoney("  1 .2  "));
    BOOST_CHECK(!ParseMoney(" +1 .2  "));
    
    BOOST_CHECK(!ParseMoney("92233720368.54775808"));
    
    BOOST_CHECK(!ParseMoney("-1"));
    
    BOOST_CHECK(!ParseMoney("\0-1"s));
    BOOST_CHECK(!ParseMoney(STRING_WITH_EMBEDDED_NULL_CHAR));
    BOOST_CHECK(!ParseMoney("1\0"s));
}
BOOST_AUTO_TEST_CASE(util_IsHex)