[fix][broker] Fix geo-replication admin client url

[Demogorgon314]

Motivation

When we only set the TLS URLs for ClusterData and set the brokerClientTlsEnabled to true, the admin client for geo-replication will be failed to create because the else if block(StringUtils.isEmpty(data.getServiceUrl())) logic is wrong.

Modifications

• Allow the cluster data only set tls url

Documentation

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

[nodece]

CI failed: https://github.com/apache/pulsar/actions/runs/9001640819/job/24737668955?pr=22584#step:11:1612

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 33.33333% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 73.13%. Comparing base (bbc6224) to head (6b0dc19).
Report is 246 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #22584      +/-   ##
============================================
- Coverage     73.57%   73.13%   -0.45%     
- Complexity    32624    32772     +148     
============================================
  Files          1877     1887      +10     
  Lines        139502   141073    +1571     
  Branches      15299    15484     +185     
============================================
+ Hits         102638   103168     +530     
- Misses        28908    29949    +1041     
  Partials       7956     7956              

Flag	Coverage Δ
inttests	27.32% <0.00%> (+2.73%)	⬆️
systests	24.58% <0.00%> (+0.25%)	⬆️
unittests	72.15% <33.33%> (-0.70%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
...rg/apache/pulsar/broker/service/BrokerService.java	81.45% <33.33%> (+0.67%)	⬆️

... and 340 files with indirect coverage changes