Prepare release v287

[heroku-linguist]

Commits since the last release:

• Bump uv from 0.7.3 to 0.7.5 (Bump uv from 0.7.3 to 0.7.5 #1800)
• Bump rubocop from 1.75.5 to 1.75.6 in the ruby-dependencies group (Bump rubocop from 1.75.5 to 1.75.6 in the ruby-dependencies group #1804)
• Bump uv from 0.7.5 to 0.7.6 (Bump uv from 0.7.5 to 0.7.6 #1803)
• Bump poetry from 2.1.2 to 2.1.3 (Bump poetry from 2.1.2 to 2.1.3 #1797)
• Bump pip from 25.0.1 to 25.1.1 (Bump pip from 25.0.1 to 25.1.1 #1795)

For the full diff, see the compare view:
v286...main

[edmorley]

$ make publish
Checking environment...
Checking buildpack versions in sync...
Extracting changelog entry for this release...

- Updated pip from 25.0.1 to 25.1.1. ([#1795](https://github.com/heroku/heroku-buildpack-python/pull/1795))
- Updated Poetry from 2.1.2 to 2.1.3. ([#1797](https://github.com/heroku/heroku-buildpack-python/pull/1797))
- Updated uv from 0.7.3 to 0.7.6. ([#1800](https://github.com/heroku/heroku-buildpack-python/pull/1800) and [#1803](https://github.com/heroku/heroku-buildpack-python/pull/1803))

Deploy as v287 [y/n]? y

Creating GitHub release...
https://github.com/heroku/heroku-buildpack-python/releases/tag/v287

Publishing to the Heroku Buildpack Registry...
Two-factor code: ********************************************
Publishing buildpack heroku/python... done
Publishing buildpack was successful

 Version Released At              Status    
 ─────── ──────────────────────── ───────── 
 287     2025-05-20T18:09:49.238Z published