FIX 3001_mqtt_alarms removing dependency on external MQTT broker

[fgalan]

Problema found in PR #4637

Maybe mqtt.flespi.io is no longer available... better not depending on any external MQTT service.

Working locally:

(p3) fermin@bodoque:~/src/fiware-orion/test/functionalTest$ ./testHarness.sh  cases/3001_mqtt_alarms/
lun 13 ene 2025 16:42:48 CET
Run tests 0 to 0
0001/4: mqtt_alarms_log_summary.test .................................................................................  28 seconds
0002/4: mqtt_alarms_none.test ........................................................................................  04 seconds
0003/4: mqtt_alarms_raise_and_release.test ...........................................................................  07 seconds
0004/4: mqtt_alarms_raise_repeat_and_release.test ....................................................................  08 seconds
Total test time: 47.01 seconds

but unsure about GitAction configuration... let's see

• valgrind-nocache.yml
• valgrind.yml
• test/functionalTest/mosquittoConf/README.md

[fgalan]

Nothing dangerous here :) This is just the codification of "xxxx"

[fgalan]

NTC (informative)

[fgalan]

A lot of testing (around 50 commits :) in this PR, so I have rebase and force push to clean it up.

[fgalan]

The MQTT broker in 1883 uses 2.0.11 version without problem (see L59), but this auxiliar MQTT broker in 1884 has to be 1.6.15 or 3001_mqtt/mqtt_subscription_multibroker.test will break.

It's weird... I'm looking at it.

[fgalan]

As a side-improvement, MQTT broker version has been updated from 1.6.7 to 2.0.11

[mapedraza]

LGTM