Round test duration to whole seconds if it's more then 1s

Report will contain less accurate information but it will be easier to read.

src/utils/markdown-utils.ts

@@ -41,7 +41,7 @@ export function ellipsis(text: string, maxLength: number): string {
 
 export function formatTime(ms: number): string {
   if (ms > 1000) {
-    return `${(ms / 1000).toFixed(3)}s`
+    return `${Math.round(ms / 1000)}s`
   }
 
   return `${Math.round(ms)}ms`