Merge pull request #541 from jenkinsci/renovate/j2html.version

Bump j2html.version to v1.6.0

Author: uhafner

.github/renovate.json

@@ -2,5 +2,10 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": ["github>jenkinsci/renovate-config"],
   "commitMessageAction": "Bump",
-  "ignorePaths": ["src/**"]
+  "ignorePaths": ["src/**"],
+  "packageRules": [
+    {
+      "matchPackageNames": ["com.j2html:j2html"],
+      "allowedVersions": "< 1.5.0"
+    },
 }