feat: support for Pekko Streams in the scala client

[utkuaydn]

Closes #660

Proposed Changes

Support for Pekko Streams in the scala client

Checklist

• CHANGELOG.md updated
• Rebased/mergeable
• A test has been added if appropriate
• mvn test completes successfully
• Commit messages are conventional
• Sign CLA (if not already signed)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (fd604f8) 88.35% compared to head (aeea943) 88.37%.

❗ Current head aeea943 differs from pull request most recent head 2b3d34a. Consider uploading reports for the commit 2b3d34a to get more accurate results

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Additional details and impacted files

@@ Coverage Diff @@ ## master #661 +/- ## ============================================ + Coverage 88.35% 88.37% +0.01%  Complexity 777 777 ============================================ Files 173 173 Lines 7078 7078 Branches 393 393 ============================================ + Hits 6254 6255 +1  + Misses 699 698 -1  Partials 125 125 

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[bednar]

Hi @utkuaydn,

I want to express my sincere gratitude for your pull request. It's a substantial improvement to our client, and we truly appreciate the effort and expertise you've brought into this project. Given Lightbend's decision to license future Akka releases under the Business Software License — which is incompatible with Open Source usage — I agree with your perspective that use Pekko streams.

From our point of view the Akka Streams should be replaced by Pekko Streams.

Could you please update your pull request to reflect these changes?

1. Remove Akka Streams: Completely transition away from Akka Streams and implement Pekko streams throughout the client.
2. Upgrade Major Version: Update the major version of the client to 7.0.0 to reflect this significant change and its potential impacts on compatibility.

These updates will align our client with a fully open-source framework and ensure its usability and compliance with open-source licensing moving forward.

Once again, thank you for your contribution, and we look forward to seeing the updated pull request.

[utkuaydn]

Hi @bednar

It is my pleasure to be able to contribute. I have removed everything Akka-related per your request. The only edit on your part would have to be the date on the changelog since I do not know when you will be releasing this. Do let me know if anything needs changing.

[bednar]

Thank you again for your PR! 👍 Before we can proceed with accepting it, there are a few requirements that need to be met:

1. Please rebase sources to fix conflict in pom.xml
2. Please satisfy our Checklist:
   

and also:

[utkuaydn]

Hi @bednar,

I've completed the checklist and rebased the commit 👍

[bednar]

@utkuaydn thanks again for your PR 👍

LGTM 🚀

[reyrobs]

Well done Utku!