Syncthingtray-qt6: libboost_filesystem.so=1.89.0-64 dependency could not be satisfied

The latest version of Manjaro Unstable seems to be unable to sleep.

Then an error occurred during the package update.
Finding package conflicts…
Error: Unable to prepare transaction (dependency could not be satisfied)
:: Install boost-libs (1.90.0-4) - Breaks dependency ‘libboost_filesystem.so=1.89.0-64’ (required by syncthingtray-qt6)
→ error installing repo packages

syncthingtray-qt6 is a custom package - remove it - update, then rebuild syncthingtray-qt6

You need to rebuild syncthingtray-qt6 on Boost 1.90.