[fix][ci] Ensure to run setup method in SimpleProducerConsumerTest

[nicoloboschi]

Motivation

After #17887 there are a lot of failures in the CI

java.lang.NullPointerException: Cannot invoke "org.apache.pulsar.broker.PulsarService.getConfiguration()" because "this.pulsar" is null
	at org.apache.pulsar.client.api.SimpleProducerConsumerTest.rest(SimpleProducerConsumerTest.java:138)

java.lang.NullPointerException: Cannot invoke "org.apache.pulsar.client.api.PulsarClient.newConsumer()" because "this.pulsarClient" is null
	at org.apache.pulsar.client.api.SimpleProducerConsumerTest.testConcurrentConsumerReceiveWhileReconnect(SimpleProducerConsumerTest.java:880)

The reason is that the after method is always executed meanwhile the setup method is not+

Modifications

• Add back alwaysRun=true in the setup method

Verifying this change

• Make sure that the change passes the CI checks.

Documentation

• doc
• doc-required
• doc-not-needed
• doc-complete

[codecov-commenter]

Codecov Report

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The diff coverage is n/a.

@@            Coverage Diff            @@
##             master   #18068   +/-   ##
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  Coverage          ?   45.81%           
  Complexity        ?    17567           
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  Files             ?     1574           
  Lines             ?   128320           
  Branches          ?    14116           
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  Hits              ?    58794           
  Misses            ?    63452           
  Partials          ?     6074           

Flag	Coverage Δ
unittests	45.81% <0.00%> (?)

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[tisonkun]

Good catch!