Prepare release v345

[heroku-linguist]

Commits since the last release:

• Add support for Python 3.14.5 (Add support for Python 3.14.5 #2094)
• Prepare release v345 (Prepare release v345 #2095)
• Bump rubocop from 1.86.1 to 1.87.0 in the ruby-dependencies group (Bump rubocop from 1.86.1 to 1.87.0 in the ruby-dependencies group #2097)
• Bump the python-dependencies group across 1 directory with 3 updates (Bump the python-dependencies group across 1 directory with 3 updates #2098)

For the full diff, see the compare view:
v344...main

[edmorley]

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

- Updated pip from 26.1.1 to 26.1.2. ([#2098](https://github.com/heroku/heroku-buildpack-python/pull/2098))
- Updated Poetry from 2.4.0 to 2.4.1. ([#2098](https://github.com/heroku/heroku-buildpack-python/pull/2098))
- Updated uv from 0.11.11 to 0.11.19. ([#2098](https://github.com/heroku/heroku-buildpack-python/pull/2098))


- The Python 3.14 version alias now resolves to Python 3.14.5. ([#2094](https://github.com/heroku/heroku-buildpack-python/pull/2094))

Deploy as v345 [y/n]? y

Creating GitHub release...
https://github.com/heroku/heroku-buildpack-python/releases/tag/v345

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

  Version   Released At                Status
 ────────────────────────────────────────────────
  345       2026-06-04T15:52:28.425Z   published

[edmorley]

https://devcenter.heroku.com/changelog-items/3716

[edmorley]

Note: This release also included #2094 since the original v345 release prepared in #2095 ended up not being published at the time.