Adjust K6 thresholds

- Adjust timings based on previous runs.
- Reduce from 5 to 4 parallel clients for CM handle searches
  to avoid OutOfMemoryErrors.

Issue-ID: CPS-2208
Signed-off-by: danielhanrahan <daniel.hanrahan@est.tech>
Change-Id: I339cc3df84b2295bb11371ab73b4948f43615c15
diff --git a/k6-tests/ncmp/2-wait-for-cmhandles-to-be-ready.js b/k6-tests/ncmp/2-wait-for-cmhandles-to-be-ready.js
index 4ecadde..5d54c60 100644
--- a/k6-tests/ncmp/2-wait-for-cmhandles-to-be-ready.js
+++ b/k6-tests/ncmp/2-wait-for-cmhandles-to-be-ready.js
@@ -27,7 +27,7 @@
     iterations: 1,
     thresholds: {
         http_req_failed: ['rate == 0'],
-        iteration_duration: ['max <= 300_000'], // 5 minutes
+        iteration_duration: ['max <= 260000'], // 4m20s
     },
 };
 
@@ -67,4 +67,4 @@
     return {
         stdout: makeCustomSummaryReport(data, options),
     };
-}
\ No newline at end of file
+}