Merge #30169: fuzz: Fix wallet_bdb_parser stdlib error matching

fac7298 fuzz: Fix wallet_bdb_parser stdlib error matching (MarcoFalke)

Pull request description:

  The stdlib error string is an implementation detail and can not be relied upon.

  Ref: `libc++abi: terminating due to uncaught exception of type std::runtime_error: AutoFile::read: end of file: unspecified iostream_category error`

ACKs for top commit:
  achow101:
    ACK fac7298

Tree-SHA512: 588acc71a05d97855d6bb65380411e8486692536434eadee7697de09f80b128ff2f90a31fd0e8384d084b554d2f3978efd076082e070e721cf05b07c94cc83b1

src/wallet/test/fuzz/wallet_bdb_parser.cpp

@@ -61,8 +61,8 @@ FUZZ_TARGET(wallet_bdb_parser, .init = initialize_wallet_bdb_parser)
 #ifdef USE_BDB
  bdb_ro_err = true;
 #endif
- if (error.original == "AutoFile::ignore: end of file: iostream error" ||
- error.original == "AutoFile::read: end of file: iostream error" ||
+ if (error.original.starts_with("AutoFile::ignore: end of file") ||
+ error.original.starts_with("AutoFile::read: end of file") ||
  error.original == "Not a BDB file" ||
  error.original == "Unsupported BDB data file version number" ||
  error.original == "Unexpected page type, should be 9 (BTree Metadata)" ||