<!--
Thank you for contributing to uv! To help us out with reviewing, please
consider the following:
- Does this pull request include a summary of the change? (See below.)
- Does this pull request include a descriptive title?
- Does this pull request include references to any relevant issues?
-->
## Summary
Update the `UV_VERSION`, such that a `copy-to-clipboard` action and
pasting into a `.gitlab-ci.yml` is not 4 minor versions behind, as it
happened to me a couple of times.
<!-- What's the purpose of the change? What does it do, and why? -->
## Test Plan
I ran `mkdocs serve` and it worked (I literally only changed one
character)
<!-- How was it tested? -->
## Summary
As new environment variables get introduced (e.g. `UV_EDITABLE`) I
thought it would useful to start tracking which release they were
introduced. I think its a common workflow to navigate to the [env var
documentation](https://docs.astral.sh/uv/reference/environment) to know
what the env var for something is but then end up in a situation where
one is using an environment variable with the wrong version of uv and
not notice immediately that its not compatible and therefore ignored.
## Test Plan
Existing tests.
The versions in `since` have all been manually reviewed to the best of
my ability for correctness.
<!--
Thank you for contributing to uv! To help us out with reviewing, please
consider the following:
- Does this pull request include a summary of the change? (See below.)
- Does this pull request include a descriptive title?
- Does this pull request include references to any relevant issues?
-->
## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
Adding a 3.14 classifier.
## Test Plan
<!-- How was it tested? -->
3.14 is already supported.
Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
