[fix] Initialize UrlServiceProvider before trying to use transaction coordinator

[merlimat]

Motivation

When transaction client is enabled, it gets initialized before the ServiceUrlProvider does get a chance to get initialized.

If the URL depends on a probe in the ServiceUrlProvider, the txn coordinator client is still going to use the default URL instead of getting an updated URL by the probe.

Modifications

Verifying this change

• Make sure that the change passes the CI checks.

(Please pick either of the following options)

This change is a trivial rework / code cleanup without any test coverage.

(or)

This change is already covered by existing tests, such as (please describe tests).

(or)

This change added tests and can be verified as follows:

(example:)

• Added integration tests for end-to-end deployment with large payloads (10MB)
• Extended integration test for recovery after broker failure

Does this pull request potentially affect one of the following parts:

If the box was checked, please highlight the changes

• Dependencies (add or upgrade a dependency)
• The public API
• The schema
• The default values of configurations
• The threading model
• The binary protocol
• The REST endpoints
• The admin CLI options
• The metrics
• Anything that affects deployment

Documentation

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

Matching PR in forked repository

PR in forked repository:

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.23%. Comparing base (bbc6224) to head (5466479).
Report is 878 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #23914      +/-   ##
============================================
+ Coverage     73.57%   74.23%   +0.66%     
+ Complexity    32624    31803     -821     
============================================
  Files          1877     1853      -24     
  Lines        139502   143737    +4235     
  Branches      15299    16339    +1040     
============================================
+ Hits         102638   106704    +4066     
+ Misses        28908    28632     -276     
- Partials       7956     8401     +445     

Flag	Coverage Δ
inttests	26.73% <33.33%> (+2.14%)	⬆️
systests	23.20% <33.33%> (-1.12%)	⬇️
unittests	73.75% <100.00%> (+0.90%)	⬆️

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

Files with missing lines	Coverage Δ
...g/apache/pulsar/client/impl/ClientBuilderImpl.java	86.30% <100.00%> (+0.32%)	⬆️
...rg/apache/pulsar/client/impl/PulsarClientImpl.java	75.20% <100.00%> (+0.90%)	⬆️

... and 1032 files with indirect coverage changes