1.87.0 announcement

[Mark-Simulacrum]

Rendered

[Mark-Simulacrum]

@rustbot ping relnotes-interest-group

[rustbot]

Hi relnotes-interest-group, this PR adds a release blog post. Could you review
the blog post if you have time? Thanks <3

cc @alex-semenyuk @jieyouxu @joshtriplett @Kobzol @lcnr @traviscross

[m-ou-se]

I didn't mention anything about 10 years since 1.0 here -- maybe a separate post is best?

This release blog post will be published live from the stage at the celebration at RustWeek (by @pietroalbini), so I think it'd be good if we put some mention of the 10 year anniversary in this blog post.

I'll put it on my to do list for this week to come up with some short text for that.

[joshtriplett]

Here's a first pass at text for the ten-year anniversary release.

[BoxyUwU]

There have been some changes to the stabilized APIs since when this PR was authored. They should be re-copied from #140802 before merging

[pietroalbini]

The list of stabilized APIs changed again in rust-lang/rust#140864

[m-ou-se]

Added text for the 10 year anniversary, and a placeholder for the photo.