Pause SD queue early on M25 (#21317)

Marlin/src/gcode/host/M115.cpp

@@ -120,6 +120,9 @@ void GcodeSuite::M115() {
     // REPEAT (M808)
     cap_line(PSTR("REPEAT"), ENABLED(GCODE_REPEAT_MARKERS));
 
+    // SD_WRITE (M928, M28, M29)
+    cap_line(PSTR("SD_WRITE"), ENABLED(SDSUPPORT) && DISABLED(SDCARD_READONLY));
+
     // AUTOREPORT_SD_STATUS (M27 extension)
     cap_line(PSTR("AUTOREPORT_SD_STATUS"), ENABLED(AUTO_REPORT_SD_STATUS));