Update blogs.md

[ajantha-bhat]

Add the recent blog about "How not to use Apache Iceberg"

[ajantha-bhat]

@bitsondatadev : we are using this repo for the site now after #8919 ?

So, I raised PR here instead of Iceberg-docs repo. Let me know if I need to raise there instead.

[bitsondatadev]

@ajantha-bhat, thanks! If you add it here it won't show up on iceberg.apache.org as soon as we merge this PR. The swap will happen with #9520 once we get some consensus on the mailing list. I will bring this up today in the community sync.

This merge will show up at https://apache.github.io/iceberg/blogs/

I would just keep this here as this should happen within the next week, likely by Friday.

[ajantha-bhat]

Thanks for the info.

[bitsondatadev]

Looks good! This was a super informative blog post Ajantha, thanks!

[ajantha-bhat]

I think this can be merged now.

cc: @nastra, @Fokko

[Fokko]

Nice! Thanks @ajantha-bhat for adding the blog, and @bitsondatadev for the review 🙌