Correct version in setup.py

Author: JorjMcKie

setup.py

@@ -57,7 +57,7 @@
                        sources=['./fitz/fitz_wrap.c',])
 
 setup(name = 'PyMuPDF',
-      version = "1.13.2",
+      version = "1.13.3",
       description = 'Python bindings for the PDF rendering library MuPDF',
       classifiers = ['Development Status :: 5 - Production/Stable',
                      'Environment :: Console',