Update justinrainbow/json-schema in require-dev to ~1.6

This matches the version that Kartographer is tracking, and hence
the committed vendor repo

Change-Id: I92bc1d03e62482bf9de4903ac14f79a4340ed1f2

diff --git a/composer.json b/composer.json
index 54eb3c0..1bd3d4c 100644 (file)
--- a/composer.json
+++ b/composer.json
@@ -45,7 +45,7 @@
        },
        "require-dev": {
                "jakub-onderka/php-parallel-lint": "0.9.2",
-               "justinrainbow/json-schema": "~1.3",
+               "justinrainbow/json-schema": "~1.6",
                "mediawiki/mediawiki-codesniffer": "0.7.2",
                "monolog/monolog": "~1.18.2",
                "nikic/php-parser": "1.4.1",