Start listening phase even when listeners are only in imported modules

[Nadeeshan96]

Purpose

Describe the problems, issues, or needs driving this feature/fix and include links to related issues.

$title
Fixes #41667

Approach

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Samples

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Remarks

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Created ballerina-platform/ballerina-library#5836 to add a test.

Check List

• 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

Attention: 58 lines in your changes are missing coverage. Please review.

Comparison is base (612e44f) 76.69% compared to head (a3ee046) 76.70%.
Report is 67 commits behind head on master.

Files	Patch %	Lines
...ballerinalang/central/client/CentralAPIClient.java	25.53%	29 Missing and 6 partials ⚠️
...n/java/org/ballerinalang/central/client/Utils.java	60.00%	13 Missing and 1 partial ⚠️
...in/java/io/ballerina/cli/task/RunProfilerTask.java	64.28%	4 Missing and 1 partial ⚠️
.../compiler/bir/codegen/interop/JMethodResolver.java	91.17%	1 Missing and 2 partials ⚠️
...lerinalang/compiler/bir/codegen/JvmPackageGen.java	85.71%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             master   #41762   +/-   ##
=========================================
  Coverage     76.69%   76.70%           
- Complexity    52904    52924   +20     
=========================================
  Files          2881     2881           
  Lines        199397   199444   +47     
  Branches      25929    25938    +9     
=========================================
+ Hits         152932   152984   +52     
+ Misses        38016    38015    -1     
+ Partials       8449     8445    -4     

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[HindujaB]

LGTM

[warunalakshitha]

LGTM