breakpointmodel.cpp: fix build with -Wimplicit-fallthrough
/wrkdirs/usr/ports/devel/kdevelop/work/kdevelop-24.04.80/kdevplatform/debugger/breakpoint/breakpointmodel.cpp:312:5: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough] 312 | case ReloadState::StartedReloading: | ^ /wrkdirs/usr/ports/devel/kdevelop/work/kdevelop-24.04.80/kdevplatform/debugger/breakpoint/breakpointmodel.cpp:312:5: note: insert 'break;' to avoid fall-through 312 | case ReloadState::StartedReloading: | ^ | break; 1 warning and 1 error generated.