cylc-7.8.4 maintenance release with some important fixes and several minor enhancements.
- support alternate suite run directories (e.g. to put fast-running sub-suites on fast local disk);
- faster suite validation
- fix delayed stall on reloading a suite after removing tasks from the graph;
- fix xtrigger cycle sequence specificity;
- record all xtrigger return values for re-use at suite restart