[improve][CI] Speed up execution of OTHER unit test group by removing -DtestReuseFork=false

[lhotari]

Motivation

using -DtestReuseFork=false slows down test execution significantly.

• this was added in https://github.com/apache/pulsar/pull/17049/files#diff-e6ac90fc5f2373a64dc1ecaa11a9c965f9a22f128cc4ca1265972e0dc4fef9c5R137

Modifications

remove -DtestReuseFork=false for OTHER unit test group

Documentation

• [ ] doc
• [ ] doc-required
• [x] doc-not-needed
• [ ] doc-complete

Matching PR in forked repository

PR in forked repository: https://github.com/lhotari/pulsar/pull/100

[poorbarcode]

/pulsarbot rerun-failure-checks

[codecov-commenter]

Codecov Report

:exclamation: No coverage uploaded for pull request base (master@4742b6f). Click here to learn what that means. The diff coverage is n/a.

@@            Coverage Diff            @@
##             master   #17943   +/-   ##
=========================================
  Coverage          ?   47.36%           
  Complexity        ?    10468           
=========================================
  Files             ?      698           
  Lines             ?    67990           
  Branches          ?     7272           
=========================================
  Hits              ?    32205           
  Misses            ?    32196           
  Partials          ?     3589           

Flag	Coverage Δ
unittests	47.36% <0.00%> (?)

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