gnucash stable: ensure boost::regex is compiled at startup

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/f3653213 (commit)
	from  https://github.com/Gnucash/gnucash/commit/2911a0cc (commit)



commit f36532131bc7628f50389fab5068b14c65498f55
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Wed May 27 22:41:20 2026 +0800

    ensure boost::regex is compiled at startup
    
    instead of per-call



Summary of changes:
 gnucash/import-export/csv-imp/gnc-imp-props-price.cpp | 2 +-
 gnucash/import-export/csv-imp/gnc-imp-props-tx.cpp    | 2 +-
 libgnucash/backend/dbi/gnc-backend-dbi.cpp            | 2 +-
 libgnucash/engine/gnc-datetime.cpp                    | 3 +--
 libgnucash/engine/gnc-datetime.hpp                    | 5 +++--
 5 files changed, 7 insertions(+), 7 deletions(-)