Remove decimals from time periods

Since a recent change in Check mk the time interval can only contain
integers (No sub-second accuracy). This change removes the milliseconds
from the time interval.

CMK-15113

Author: lpetrora

src/backend/rest.ts

@@ -265,6 +265,9 @@ export default class RestApiBackend implements Backend {
       throw 'Query is missing required fields';
     }
 
+    range.from.set('milliseconds', 0);
+    range.to.set('milliseconds', 0);
+
     const commonRequest: CommonRequest = {
       type: query.requestSpec.graph_type,
       time_range: {