optimize: alter the print info in ConfigurationFactory.java when load ExtConfiguration

[LegGasai]

• I have registered the PR changes.

Ⅰ. Describe what this PR did

#6956

Ⅱ. Does this pull request fix one issue?

Ⅲ. Why don't you add test cases (unit test/integration test)?

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 52.83%. Comparing base (a60588a) to head (c41f1b6).
Report is 2 commits behind head on 2.x.

Files with missing lines	Patch %	Lines
.../org/apache/seata/config/ConfigurationFactory.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##                2.x    #7040   +/-   ##
=========================================
  Coverage     52.83%   52.83%           
+ Complexity     6658     6656    -2     
=========================================
  Files          1128     1128           
  Lines         40142    40142           
  Branches       4707     4705    -2     
=========================================
  Hits          21210    21210           
  Misses        16920    16920           
  Partials       2012     2012           

Files with missing lines	Coverage Δ
.../org/apache/seata/config/ConfigurationFactory.java	39.47% <0.00%> (ø)

[slievrly]

LGTM