software/{kvm,theia}: use unevaluatedProperties for schema composition

This is based on example from https://json-schema.org/understanding-json-schema/reference/object#unevaluatedproperties
this approach allows extending a schema from another software type with
some extra properties while rejecting other properties on instances,
like it's done with additionalProperties: false.

software/kvm/instance-kvm-input-schema.json

 {
   "type": "object",
-  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
   "title": "Input Parameters",
+  "$defs": {
+    "instance-parameters": {
+      "type": "object",
       "properties": {
         "enable-device-hotplug": {
           "title": "Enable device hotplug mode",
@@ -428,4 +431,12 @@
           }
         }
       }
+    }
+  },
+  "unevaluatedProperties": false,
+  "allOf": [
+    {
+      "$ref": "#/$defs/instance-parameters"
+    }
+  ]
 }

software/kvm/instance-kvm-resilient-input-schema.json

@@ -2,13 +2,12 @@
   "type": "object",
   "$schema": "https://json-schema.org/draft/2020-12/schema#",
   "description": "Parameters to instantiate resilient KVM",
+  "unevaluatedProperties": false,
   "allOf": [
     {
-      "$ref": "./instance-kvm-input-schema.json#",
-      "additionalProperties": true
-    },
-    {
-      "additionalProperties": true,
+      "$ref": "./instance-kvm-input-schema.json#/$defs/instance-parameters"
+    }
+  ],
   "properties": {
     "resilient-clone-number": {
       "title": "Amount of backup(s) to create",
@@ -61,6 +60,4 @@
       "optional": true
     }
   }
-    }
-  ]
 }

software/theia/instance-input-schema.json

 {
-  "$schema": "http://json-schema.org/draft-06/schema#",
-  "type": "object",
+  "$schema": "https://json-schema.org/draft/2019-09/schema",
   "description": "Parameters to instantiate Theia",
-  "additionalProperties": false,
+  "$defs": {
+    "instance-parameters": {
+      "type": "object",
       "properties": {
         "autorun": {
           "title": "Automatically Run Software/Instance",
@@ -72,4 +73,12 @@
           "default": "RootSoftwareInstance"
         }
       }
+    }
+  },
+  "unevaluatedProperties": false,
+  "allOf": [
+    {
+      "$ref": "#/$defs/instance-parameters"
+    }
+  ]
 }

software/theia/instance-resilient-input-schema.json

 {
-  "$schema": "https://json-schema.org/draft/2020-12/schema#",
+  "$schema": "https://json-schema.org/draft/2019-09/schema",
   "type": "object",
   "description": "Parameters to instantiate resilient Theia",
+  "unevaluatedProperties": false,
   "allOf": [
     {
-      "$ref": "./instance-input-schema.json#",
-      "additionalProperties": true
-    },
-    {
-      "additionalProperties": true,
+      "$ref": "./instance-input-schema.json#/$defs/instance-parameters"
+    }
+  ],
   "properties": {
     "resilient-clone-number": {
       "title": "Amount of backup(s) to create",
@@ -63,6 +62,4 @@
       "optional": true
     }
   }
-    }
-  ]
 }