Bump tokenizer to v2.4.1 and our version to 2.7.3

Change-Id: Id8780e465e522d65091d0203304007e69c483d43
diff --git a/script/tei2korapxml b/script/tei2korapxml
index f8a26c2..8b3cf96 100755
--- a/script/tei2korapxml
+++ b/script/tei2korapxml
@@ -25,7 +25,7 @@
 use KorAP::XML::TEI::Header;
 use KorAP::XML::TEI::Inline;
 
-our $VERSION = '2.7.2';
+our $VERSION = '2.7.3';
 
 our $VERSION_MSG = "\ntei2korapxml - v$VERSION\n";