fix sample count to sum

Author: maxday

.github/workflows/bootstrap-alarms.yml

@@ -52,13 +52,14 @@ jobs:
             echo "Creating alarm: ${ALARM_NAME}"
 
             # period = 259200s = 3 days (runs every workday + buffer for weekends)
+            # Alarms when no success metric is received within the period
             aws cloudwatch put-metric-alarm \
               --alarm-name "${ALARM_NAME}" \
               --alarm-description "Integration test: ${distro} ${distro_version} / ruby ${runtime_version} (${arch})" \
               --namespace "${ALARM_NAMESPACE}" \
               --metric-name "TestResult" \
               --dimensions "Name=Distro,Value=${distro}" "Name=DistroVersion,Value=${distro_version}" "Name=RuntimeVersion,Value=${runtime_version}" "Name=Arch,Value=${arch}" \
-              --statistic SampleCount \
+              --statistic Sum \
               --period 259200 \
               --evaluation-periods 1 \
               --datapoints-to-alarm 1 \