Upgrade fonttools to 4.22.0

Test: make
Change-Id: I69cdb494f27868e707969c325386f039e5ea0e45
diff --git a/setup.py b/setup.py
index e3e7b52..d1c5a4f 100755
--- a/setup.py
+++ b/setup.py
@@ -441,7 +441,7 @@
 
 setup_params = dict(
 	name="fonttools",
-	version="4.20.0",
+	version="4.22.0",
 	description="Tools to manipulate font files",
 	author="Just van Rossum",
 	author_email="just@letterror.com",