[Fix] Mermaid gantt diagram scheduler time axis

Time axis displayed only "0 ms", probably due to a Mermaid update. Fix this by replacing "axis format %s" with "axis format %Q".

src/scheduler/Scheduler.cpp

@@ -74,7 +74,7 @@ void Aidge::SequentialScheduler::generateScheduling(bool verbose) {
             if (verbose) {
                 printf("\t- consumer: "
                        "\x1b[1;37m"
-                       "%Q"
+                       "%s"
                        "\x1b[0m"
                        "\n\t\tR/C:\t",
                        (consumer->type() + "_" + std::to_string(reinterpret_cast<uintptr_t>(consumer.get()))).c_str());
@@ -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;