Merge branch 'fix/display/scheduling' into 'main'

[Fix] Mermaid gantt diagram scheduler time axis

See merge request eclipse/aidge/aidge_core!24

src/scheduler/Scheduler.cpp

@@ -207,7 +207,7 @@ void Aidge::SequentialScheduler::forward(bool forwardDims, bool verbose) {
 
 void Aidge::SequentialScheduler::saveSchedulingDiagram(const std::string& fileName) const {
     FILE* fp = std::fopen((fileName + ".mmd").c_str(), "w");
-    std::fprintf(fp, "gantt\ndateFormat x\naxisFormat %%s ms\n\n");
+    std::fprintf(fp, "gantt\ndateFormat x\naxisFormat %%Q ms\n\n");
 
     if (!mScheduling.empty()) {
         const auto globalStart = mScheduling[0].start;