Adding CAREamics-portfolio

[jdeschamps]

Following #28148, I split the three packages into three PRs.

careamics-portfolio: a package providing access to several datasets used to illustrate or benchmark denoising algorithms.

[github-actions]

Hi! This is the staged-recipes linter and your PR looks excellent! 🚀

[conda-forge-admin]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipes/careamics-portfolio/meta.yaml) and found it was in an excellent condition.

[jdeschamps]

@conda-forge/help-python @conda-forge/staged-recipes

[github-actions]

To help direct your pull request to the best reviewers, please mention a topic-specifc team if your recipe matches any of the following: conda-forge/help-c-cpp, conda-forge/help-cdts, conda-forge/help-go, conda-forge/help-java, conda-forge/help-julia, conda-forge/help-nodejs, conda-forge/help-perl, conda-forge/help-python, conda-forge/help-python-c, conda-forge/help-r, conda-forge/help-ruby,or conda-forge/help-rust. Thanks!