Prepare 0.4.2 release

Author: bosd

setup.cfg

@@ -2,14 +2,14 @@
 name = invoice2data
 author = Manuel Riel
 description = Python parser to extract data from pdf invoice
-version = 0.4.0
+version = 0.4.2
 url = https://github.com/invoice-x/invoice2data
 keywords =
   pdf
   invoicing
 # List of classifiers: https://pypi.org/pypi?%3Aaction=list_classifiers
 classifiers =
-  Development Status :: 4 - Beta
+  Development Status :: 5 - Production/Stable
   Environment :: MacOS X
   Environment :: Console
   Environment :: Win32 (MS Windows)
@@ -18,10 +18,11 @@ classifiers =
   Operating System :: Unix
   Operating System :: Microsoft :: Windows
   License :: OSI Approved :: MIT License
-  Programming Language :: Python :: 2.7
-  Programming Language :: Python :: 3.6
   Programming Language :: Python :: 3.7
   Programming Language :: Python :: 3.8
+  Programming Language :: Python :: 3.9
+  Programming Language :: Python :: 3.10
+  Programming Language :: Python :: 3.11
   Topic :: Office/Business :: Financial
   Topic :: Office/Business :: Financial :: Accounting
 long_description = file: README.md