Upgrade metamodel version for test document templates

Author: janslifka

cypress/fixtures/templates/broken.json

@@ -6,7 +6,7 @@
   "name": "Broken Template",
   "description": "This is a broken template",
   "readme": "# Broken Template",
-  "metamodelVersion": 14,
+  "metamodelVersion": 15,
   "license": "nolicense",
   "allowedPackages": [
     {

cypress/fixtures/templates/not-allowed.json

@@ -6,7 +6,7 @@
   "name": "Not-Allowed Template",
   "description": "This template is not allowed",
   "readme": "# Not-Allowed Template",
-  "metamodelVersion": 14,
+  "metamodelVersion": 15,
   "license": "nolicense",
   "allowedPackages": [
     {

cypress/fixtures/templates/questionnaire-report.json

@@ -6,7 +6,7 @@
     "name": "Questionnaire Report",
     "description": "Exported questions and answers from a questionnaire",
     "license": "Apache-2.0",
-    "metamodelVersion": 14,
+    "metamodelVersion": 15,
     "readme": "# Questionnaire Report\n\nThis generic *default* template for [Data Stewardship Wizard](https://ds-wizard.org) (DSW) directly transforms answers from a questionnaire into a document while maintaining the structure. It is not tied to any knowledge model and is included by default in every DSW instance.\n\n## Changelog\n\n### 1.4.0\n\n- Adjusted to template metamodel version 4 (released in DSW 3.2.0)\n\n### 1.3.0\n\n- Adjusted to template metamodel version 3 (released in DSW 2.12.0)\n\n### 1.2.1\n\n- Fix issue with multiple tags on questions\n\n### 1.2.0\n\n- Added support for Multi-Choice questions (released in DSW 2.11.0)\n\n### 1.1.0\n\n- Adjusted to template metamodel version 2\n\n### 1.0.0\n\n- Initial version previously distributed as files directly in DSW\n",
     "allowedPackages": [
         {