test: mark test-vm-timeout-escape-nexttick flaky

gireeshpunathil · gireeshpunathil · commit bab607187ec4 · 2018-11-29T12:36:09.000+05:30
This is a known failure so mark it such, so that
CI is green / amber while the issue is being progressed.
diff --git a/test/known_issues/known_issues.status b/test/known_issues/known_issues.status
@@ -18,3 +18,7 @@ test-vm-timeout-escape-promise: PASS,FLAKY
 [$system==freebsd]
 
 [$system==aix]
+
+[$arch==arm]
+# https://github.com/nodejs/node/issues/24120
+test-vm-timeout-escape-nexttick: PASS,FLAKY
