Bump version

Author: mivek

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = metar-taf-parser-mivek
-version = 1.7.1
+version = 1.8.1
 author = Jean-Kevin KPADEY
 author_email = jeankevin.kpadey@gmail.com
 description = Python project parsing metar and taf message