[PWGLF] Fix int8_t configurables (#8523)

Author: vkucera

PWGLF/TableProducer/Strangeness/cascadeflow.cxx

@@ -165,7 +165,7 @@ struct cascadeFlow {
   Configurable<std::vector<double>> binsPtMl{"binsPtMl", std::vector<double>{cascade_flow_cuts_ml::vecBinsPt}, "pT bin limits for ML application"};
   Configurable<std::vector<int>> cutDirMl{"cutDirMl", std::vector<int>{cascade_flow_cuts_ml::vecCutDir}, "Whether to reject score values greater or smaller than the threshold"};
   Configurable<LabeledArray<double>> cutsMl{"cutsMl", {cascade_flow_cuts_ml::cuts[0], cascade_flow_cuts_ml::nBinsPt, cascade_flow_cuts_ml::nCutScores, cascade_flow_cuts_ml::labelsPt, cascade_flow_cuts_ml::labelsCutScore}, "ML selections per pT bin"};
-  Configurable<int8_t> nClassesMl{"nClassesMl", (int8_t)cascade_flow_cuts_ml::nCutScores, "Number of classes in ML model"};
+  Configurable<int> nClassesMl{"nClassesMl", static_cast<int>(cascade_flow_cuts_ml::nCutScores), "Number of classes in ML model"};
 
   o2::ccdb::CcdbApi ccdbApi;