Remove Spyder 5 changelog from tarball

MANIFEST.in

@@ -5,7 +5,6 @@ include img_src/oxygen_icon_set/*
 include MANIFEST.in
 include README.md
 include LICENSE.txt
-include changelogs/Spyder-5.md
 include changelogs/Spyder-6.md
 include AUTHORS.txt
 include NOTICE.txt

setup.cfg

@@ -17,6 +17,7 @@ ignore =
     conftest.py
     crowdin.yml
     external-deps/**
+    changelogs/Spyder-5.md
     changelogs/Spyder-4.md
     changelogs/Spyder-3.md
     changelogs/Spyder-2.md