Add waiting logic for created strands

[chiranSachintha]

Purpose

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

Fixes #

Approach

Describe how you are implementing the solutions along with the design details.

Samples

Provide high-level details about the samples related to this feature.

Remarks

List any other known issues, related PRs, TODO items, or any other notes related to the PR.

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

All modified and coverable lines are covered by tests ✅

Project coverage is 77.40%. Comparing base (8996d17) to head (77a9b26).
Report is 12 commits behind head on 2201.11.0-stage.

Additional details and impacted files

@@                Coverage Diff                 @@
##             2201.11.0-stage   #43763   +/-   ##
==================================================
  Coverage              77.40%   77.40%           
+ Complexity             58608    58602    -6     
==================================================
  Files                   3446     3446           
  Lines                 219182   219115   -67     
  Branches               28972    28973    +1     
==================================================
- Hits                  169647   169600   -47     
+ Misses                 40104    40083   -21     
- Partials                9431     9432    +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.