Bump thor from 1.3.2 to 1.4.0 (#1969)

Author: dependabot[bot]

Gemfile.lock

@@ -564,7 +564,7 @@ GEM
     stringio (3.1.7)
     sync (0.5.0)
     text (1.3.1)
-    thor (1.3.2)
+    thor (1.4.0)
     timecop (0.9.10)
     timeout (0.4.3)
     translation (1.41)