Prepare for new Release 7.59.3 (#860)

Co-authored-by: sensuikan1973 <sensuikan1973@users.noreply.github.com>

Author: sensuikan1973

CHANGELOG.md

@@ -1,3 +1,7 @@
+# 7.59.3
+
+fix release workflow.
+
 # 7.59.2
 
 fix release workflow.

pubspec.yaml

@@ -2,7 +2,7 @@
 # See: https://dart.dev/tools/pub/publishing
 
 name: libedax4dart
-version: 7.59.2
+version: 7.59.3
 description: Dart wrapper for libedax. With using libedax4dart, you can execute functions equivalent to edax.
 homepage: https://github.com/sensuikan1973/libedax4dart
 repository: https://github.com/sensuikan1973/libedax4dart