using new QRegularExpression instead of QregExp old obsoletized in Qt6

src/pappsomspp/protein/protein.cpp

@@ -37,7 +37,7 @@
 namespace pappso
 {
 
-QRegExp Protein::m_removeTranslationStopRegExp("\\*$");
+QRegularExpression Protein::m_removeTranslationStopRegExp("\\*$");
 
 /*
  * http://www.ncbi.nlm.nih.gov/BLAST/blastcgihelp.shtml

src/pappsomspp/protein/protein.h

@@ -59,7 +59,7 @@ class PMSPP_LIB_DECL Protein
   /** \brief number of amino acid */
   unsigned int m_length = 0;
 
-  static QRegExp m_removeTranslationStopRegExp;
+  static QRegularExpression m_removeTranslationStopRegExp;
 
   public:
   Protein();