[cantarell-fonts/respacing] Update ufoLib2 dep

[Nikolaus Waxweiler <nwaxweiler src gnome org>]

commit 1591828d85d65552fafa085fce6cac5cde6d4572
Author: Nikolaus Waxweiler <madigens gmail com>
Date:   Sun Aug 18 20:50:51 2019 +0100

    Update ufoLib2 dep

 requirements-dev.txt | 2 +-
 requirements.txt     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/requirements-dev.txt b/requirements-dev.txt
index a5747e07..28b91882 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -31,6 +31,6 @@ statmake==0.1.2
 typed-ast==1.4.0          # via astroid, mypy
 typing-extensions==3.7.4  # via mypy
 ufo2ft==2.9.1
-ufolib2==0.3.2.post2
+ufolib2==0.4.0
 unicodedata2==12.0.0
 wrapt==1.11.2             # via astroid
diff --git a/requirements.txt b/requirements.txt
index 41f4361f..4e2d468d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,5 +21,5 @@ pytz==2019.2              # via fs
 six==1.12.0               # via fs
 statmake==0.1.2
 ufo2ft==2.9.1
-ufolib2==0.3.2.post2
+ufolib2==0.4.0
 unicodedata2==12.0.0      # via fonttools