[CLEANUP] Update links for new org

[eleanorfrajka]

Description:

Update links from http://github.com/eleanorfrajka/oceanarray to http://github.com/ocean-uhh/oceanarray.

Checklist:

• I have followed the coding conventions.
• I have updated or added tests to cover my changes.
• I have updated the documentation if needed.
• I have run pytest to check that all tests pass.
• I have run pre-commit run --all-files to lint and format the code.

[Copilot]

Pull Request Overview

Update repository links to point from the personal org to the new ocean-uhh organization.

• Replace old GitHub URLs across docs, config, and packaging metadata
• Minor formatting tweak in a legacy test (extra blank line after import)

Reviewed Changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/legacy/test_process_rodb.py	Formatting-only change: inserted a blank line after an import in a test.
pyproject.toml	Updated project URLs to the new org (using https).
oceanarray/config/legacy/project_RAPID.yaml	Updated comment link to new org (still using http).
docs/source/index.rst	Updated GitHub Repo link to new org (still using http).
README.md	Updated clone URL and citation URL to the new org (using https).
CITATION.cff	Updated project URL to the new org (using https).

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