Fix spread-field error in connection pool config

[kalaiyarasiganeshalingam]

Purpose

$Subject

Fixes: ballerina-platform/ballerina-library#4594

Examples

Checklist

• Linked to an issue
• Updated the specification
• Updated the changelog
• Added tests
• Checked native-image compatibility

[codecov]

Codecov Report

Patch coverage: 74.07% and project coverage change: +0.15 🎉

Comparison is base (3f44efd) 80.36% compared to head (df7b952) 80.51%.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #712      +/-   ##
============================================
+ Coverage     80.36%   80.51%   +0.15%     
- Complexity      238      258      +20     
============================================
  Files            23       23              
  Lines           876      965      +89     
  Branches        187      215      +28     
============================================
+ Hits            704      777      +73     
+ Misses           95       91       -4     
- Partials         77       97      +20     

Impacted Files	Coverage Δ
...a/io/ballerina/stdlib/oracledb/compiler/Utils.java	64.33% <69.47%> (+3.04%)	⬆️
...db/compiler/analyzer/InitializerParamAnalyzer.java	85.91% <84.61%> (+19.24%)	⬆️
...lib/oracledb/compiler/analyzer/RecordAnalyzer.java	74.28% <100.00%> (ø)

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