cafe-desktop/ctksourceview Static analyzer results

avoid deprecated GTimeVal

based in gtksourceview commit:
https://gitlab.gnome.org/GNOME/gtksourceview/-/commit/bc0e2c57c7e7631ace7dca0079cd6beff54ce050

• 2025-10-15-161132-0212-cppcheck@21abc1ae1c0c_master
• 2025-10-15-160957-14148-1@21abc1ae1c0c_master
• 2025-10-13-153849-8247-cppcheck@21abc1ae1c0c_devel logs 212
• 2025-10-13-153715-14148-1@21abc1ae1c0c_devel logs 212
• 2025-10-13-152752-2817-cppcheck@0d1988d85a0b_devel logs 212
• 2025-10-13-152617-14148-1@0d1988d85a0b_devel logs 212
• 2025-10-13-145732-3850-cppcheck@b26d506b1f6f_cimaster logs 296
• 2025-10-13-145555-14148-1@b26d506b1f6f_cimaster logs 296
• 2025-08-10-113200-5357-cppcheck@b26d506b1f6f_master logs 289
• 2025-08-10-113024-14136-1@b26d506b1f6f_master logs 289
• 2025-08-10-112701-9218-cppcheck@b26d506b1f6f_devel logs 289
• 2025-08-10-112527-14136-1@b26d506b1f6f_devel logs 289
• 2025-07-25-105225-0502-cppcheck@e24c0dfe040f_master logs 289
• 2025-07-25-105212-2098-cppcheck@e24c0dfe040f_devel logs 289
• 2025-07-25-105050-13980-1@e24c0dfe040f_master logs 289
• 2025-07-25-105035-13980-1@e24c0dfe040f_devel logs 289
• 2025-07-25-104311-3746-cppcheck@69e3450fca21_devel logs 289
• 2025-07-25-104156-2678-cppcheck@ef76499de873_devel logs 205
• 2025-07-25-104133-13980-1@69e3450fca21_devel logs 289
• 2025-07-25-104022-13980-1@ef76499de873_devel logs 205