fix test

Author: jandro996

internal-api/src/main/java/datadog/trace/api/telemetry/WafMetricCollector.java

@@ -190,7 +190,7 @@ public void prepareMetrics() {
 
     // Requests
     for (int i = 0; i < WAF_REQUEST_COMBINATIONS; i++) {
-      long counter = wafRequestCounter.get(i);
+      long counter = wafRequestCounter.getAndSet(i, 0);
       if (counter > 0) {
         boolean ruleTriggered = (i & 1) != 0;
         boolean requestBlocked = (i & (1 << 1)) != 0;