chore: migrate data pipelines tests to junit5

[mrehan27]

Changes

• Fixed DIGraph components inferred type using explicitly mention of base classes
• Updated DIGraph function docs for clarity
• Used JUnit5 in Data Pipelines tests instead of JUnit4
• Minor improvements in Data Pipelines tests base class

[github-actions[bot]]

# Sample app builds 📱 Below you will find the list of the latest versions of the sample apps. It's recommended to always download the latest builds of the sample apps to accurately test the pull request. --- * java_layout: `rehan/test-improvements-part-1 (1716463811)` * kotlin_compose: `rehan/test-improvements-part-1 (1716463806)`

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 52.46%. Comparing base (48c64c9) to head (e662b34). Report is 34 commits behind head on feature/cdp.

:exclamation: Current head e662b34 differs from pull request most recent head 5cafdc3

Please upload reports for the commit 5cafdc3 to get more accurate results.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## feature/cdp #343 +/- ## ================================================= - Coverage 54.45% 52.46% -2.00% + Complexity 282 272 -10 ================================================= Files 109 101 -8 Lines 2534 2394 -140 Branches 355 339 -16 ================================================= - Hits 1380 1256 -124 + Misses 1032 1019 -13 + Partials 122 119 -3 ```

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[github-actions[bot]]

Build available to test Version: rehan-test-improvements-part-1-SNAPSHOT Repository: https://s01.oss.sonatype.org/content/repositories/snapshots/

[github-actions[bot]]

📏 SDK Binary Size Comparison Report

No changes detected in SDK binary size ✅