Lock postcss-less to v1.1.3 because v 1.1.4 breaks CI

mediawiki-core-npm-node-6-docker Jenkins job is failing with
`Warning: Task "stylelint:src" failed.`

Bug: T190269
Change-Id: Ic69be92c2b0b7a08a9b8cc417a40ebb38f249ea3

diff --git a/package.json b/package.json
index 2878eca..5463fba 100644 (file)
--- a/package.json
+++ b/package.json
@@ -26,6 +26,7 @@
     "karma-mocha-reporter": "2.2.5",
     "karma-qunit": "1.2.1",
     "nodemw": "0.11.0",
+    "postcss-less": "1.1.3",
     "qunitjs": "2.4.1",
     "stylelint": "8.2.0",
     "stylelint-config-wikimedia": "0.4.2",