AraGen v2 and Arabic IFEval

[alielfilali01]

In this PR we seek to merge the blog introducing the 1st Arabic Instruction Following Bench/Leaderboard

• Updating the AraGen Benchmark to its v2 as part of our dynamic evaluation commitment we announced back in december 2024.
• Provide teh community with some analysis related to changing the benchmark and a short comparative study regarding the correlation between the 3c3h dimensions

@pcuenca and @ariG23498, you assistance in this PR is much appreciated.
@clefourrier and @albertvillanova, if you have some buffer, your review here is much appreciated 🤗

cc: @Sarah-albarri @samta-kamboj

[pcuenca]

As a general comment, and not being familiar with the nomenclature, I find it a bit difficult to navigate through the concepts. For example, AraGen is a leaderboard, which is based on a dataset (also called AraGen, if I'm understanding correctly) and an evaluation method that has been reworked. Not sure if AraGen 2 is the same as AraGen-03-25 or the combination of several things.

[alielfilali01]

As a general comment, and not being familiar with the nomenclature, I find it a bit difficult to navigate through the concepts. For example, AraGen is a leaderboard, which is based on a dataset (also called AraGen, if I'm understanding correctly) and an evaluation method that has been reworked. Not sure if AraGen 2 is the same as AraGen-03-25 or the combination of several things.

@pcuenca, AraGen is first a benchmark, but the previous space was named AraGen as well. To resolve this confusion, we renamed the whole space to "Arabic-Leaderboards" instead of "AraGen-Leaderboard" and we will be adding more tasks into the same space to centralize the efforts. AraGen 2 is the same as AraGen-03-25 and the name was replaced in the blog to resolve the confusion.

Thank you @pcuenca, i will resolve the current conflicts in _blog.yml and push the updated md file.

[alielfilali01]

@pcuenca I believe all your comments are addressed now and good to go. Thanks again for your help