[#294] Fix multiple rewarders of same type

[Mark2000]

Description

Closes #294

Fixes bug.

Type of change

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

How should this pull request be reviewed?

• By commit
• All changes at once

How Has This Been Tested?

Fixes bug.

Future Work

None.

Checklist

• I have performed a self-review of my code
• I have commented my code in hard-to-understand areas
• I have made corresponding changes to the documentation and release notes
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works

[Copilot]

Pull Request Overview

Fixes a bug where multiple rewarders of the same type would overwrite each other’s settings by changing the way data_store_kwargs are passed and handled.

• Switched ComposedDataStore’s data_store_kwargs parameter from a dict to a list and zipped it with data_store_types.
• Updated create_data_store to pass a list of kwargs instead of a dict.
• Documented the fix in the release notes.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
src/bsk_rl/data/composition.py	Changed data_store_kwargs to a list, updated constructor and call site.
docs/source/release_notes.rst	Added an entry about fixing multiple-rewarder overwrite issues.

[AnaisCheval]

Nice fix !