Fix BAL_CONFIG_DATA toml parsing not throwing parsing errors

[HindujaB]

Purpose

$subject

Fixes #40220

Approach

Used the same logic we use to handle the toml parser errors.

Samples

Remarks

CheckList

• Read the Contributing Guide
• Updated Change Log
• Checked Tooling Support (#)
• Added necessary tests
  • Unit Tests
  • Spec Conformance Tests
  • Integration Tests
  • Ballerina By Example Tests
• Increased Test Coverage
• Added necessary documentation
  • API documentation
  • Module documentation in Module.md files
  • Ballerina By Examples

[codecov]

Codecov Report

Patch coverage: 80.00% and project coverage change: -3.24 ⚠️

Comparison is base (2630f80) 80.40% compared to head (1f86b97) 77.16%.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #40314      +/-   ##
============================================
- Coverage     80.40%   77.16%   -3.24%     
+ Complexity    85050    54313   -30737     
============================================
  Files          3534     3340     -194     
  Lines        289317   201862   -87455     
  Branches      55282    25977   -29305     
============================================
- Hits         232611   155772   -76839     
+ Misses        48173    37612   -10561     
+ Partials       8533     8478      -55     

Impacted Files	Coverage Δ
...ternal/configurable/providers/toml/ConfigToml.java	84.61% <77.77%> (+11.64%)	⬆️
...nfigurable/providers/toml/TomlContentProvider.java	84.61% <100.00%> (+2.26%)	⬆️

... and 821 files with indirect coverage changes

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[warunalakshitha]

Lets add these changes to breaking change in Release note.

[Nadeeshan96]

LGTM