[schema] use "integer" to specify integer types

beat/core/schema/common/1.json

@@ -90,8 +90,7 @@
     },
 
     "version": {
-      "type": "number",
-      "multipleOf": 1.0,
+      "type": "integer",
       "minimum": 1.0
     }
 

beat/core/schema/execution/1.json

@@ -109,9 +109,8 @@
       "oneOf": [
         { "type": "null" },
         {
-          "type": "number",
-          "multipleOf": 1.0,
-          "minimum": 0.0
+          "type": "integer",
+          "minimum": 0
         }
       ]
     },

beat/core/schema/statistics/1.json

@@ -75,14 +75,12 @@
     },
 
     "memory_in_bytes": {
-      "type": "number",
-      "multipleOf": 1.0,
+      "type": "integer",
       "minimum": 0
     },
 
     "counter": {
-      "type": "number",
-      "multipleOf": 1.0,
+      "type": "integer",
       "minimum": 0
     },