refactor.migrate heap to component tests

[ItsSudip]

Description of the change

Resolves INT-560
Migrating testcases of HEAP to new format

Type of change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Related issues

Fix #1

Checklists

Development

• Lint rules pass locally
• The code changed/added as part of this pull request has been covered with tests
• All tests related to the changed code pass in development

Code review

• This pull request has a descriptive title and information useful to a reviewer. There may be a screenshot or screencast attached
• "Ready for review" label attached to the PR and reviewers mentioned in a comment
• Changes have been reviewed by at least one other engineer
• Issue from task tracker has a link to this pull request

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.01% 🎉

Comparison is base (3ff86d4) 86.59% compared to head (fa51380) 86.61%.

Additional details and impacted files

@@                              Coverage Diff                              @@
##           refactor.migrate-test-cases-to-new-format    #2591      +/-   ##
=============================================================================
+ Coverage                                      86.59%   86.61%   +0.01%     
=============================================================================
  Files                                            563      563              
  Lines                                          27796    27772      -24     
  Branches                                        6656     6648       -8     
=============================================================================
- Hits                                           24071    24055      -16     
+ Misses                                          3369     3362       -7     
+ Partials                                         356      355       -1     

Files Changed	Coverage Δ
...t/integrations/destinations/heap/processor/data.ts	100.00% <100.00%> (ø)
test/integrations/destinations/heap/router/data.ts	100.00% <100.00%> (ø)

... and 12 files with indirect coverage changes

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[sonarqubecloud]

SonarCloud Quality Gate failed.   

1 Bug
0 Vulnerabilities
0 Security Hotspots
22 Code Smells

75.1% Coverage
10.1% Duplication

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