Update vdiffr version

Thomas Knecht · Thomas Knecht · commit 2484f71296a7 · 2019-09-17T18:02:50.000+02:00
diff --git a/tests/figs/deps.txt b/tests/figs/deps.txt
@@ -1,3 +1,3 @@
 - vdiffr-svg-engine: 1.0
-- vdiffr: 0.3.0
+- vdiffr: 0.3.1
 - freetypeharfbuzz: 0.2.5
