update doc date

DDRec/include/DDRec/DetectorData.h

@@ -508,7 +508,7 @@ namespace dd4hep {
     /** Data structure that holds a map of string keys to a typesafe union of double, int, string or bool.
      *  It can be used as an extension object for detector elements to attach arbitrary information 
      *  @author P.Gessinger, CERN
-     *  @date May, 24 2022
+     *  @date May, 25 2022
      */
     struct MapStringVariantStruct {
       std::map<std::string, boost::variant<double, int, std::string, bool>> variantParameters{};

DDRec/src/plugins/addVariantParameters.cpp

@@ -24,7 +24,7 @@ namespace dd4hep::rec {
 
 /**
  *  @author P.Gessinger, CERN
- *  @date May, 24 2022
+ *  @date May, 25 2022
  *
  *  \brief Plugin which attaches parameters with string keys and int, double, 
  *  string or bool values to detector elements