netperfmeter: fix: restore statistical tests PASS result MYSTERIOUSLY broken by innocent lint fix

Commit 2a558fb ("fix: minor lint fixes") removed the line

    sim-time-limit = 3600s 1ms

as duplicate. This should NOT have any side effect on the statistics,
but apparently it did:

    examples/inet/netperfmeter -c TraceFile-Sctp for 100s FAIL (unexpected)
	(experiment = TraceFile-Sctp, measurement = $N1=fullPath(), = $N2=fullPath(), = $alphaMainClie..., replication = #0,
	module = testNetwork.westernBorderRouter.ppp[0].queue, name = queueBitLength:timeavg, value_stored = 0.0, value_current = 0.000008, relative_error = 3.583519) in 3.15

    examples/inet/netperfmeter -c TraceFile-Tcp for 100s FAIL (unexpected)
	 (experiment = TraceFile-Tcp, measurement = $N1=fullPath(), = $N2=fullPath(), = $alphaMainClie..., replication = #0,
	module = testNetwork.clientMain[0].ppp[0].queue, name = queueLength:timeavg, value_stored = 0.0, value_current = 0.000005, relative_error = 3.352071) in 2.271

    examples/inet/netperfmeter -c TraceFile-Udp for 100s FAIL (unexpected)
	(experiment = TraceFile-Udp, measurement = $N1=fullPath(), = $N2=fullPath(), = $alphaMainClie..., replication = #0,
	module = testNetwork.clientMain[0].ppp[0].queue, name = queueBitLength:timeavg, value_stored = 0.001161, value_current = 0.022824, relative_error = 2.978776) in 2.252


see https://github.com/inet-framework/inet/actions/runs/28865522864/job/85614511571

Author: avarga

examples/inet/netperfmeter/omnetpp.ini

@@ -16,7 +16,7 @@
 
 [General]
 network             = testNetwork
-sim-time-limit      = 100s
+sim-time-limit      = 3600s 1ms
 rng-class           = cMersenneTwister
 seed-0-mt           = 1
 simtime-resolution  = 10ns