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This is now possible because all non-EOL MacOS versions now support
`find -print0`/`sort -z`/`xargs -0`

Add CPython 3.14.0b1 and 3.15-dev

Mainly for tests, to avoid having to adjust call counts for stubs when the logic changes

Co-authored-by: Ivan Pozdeev <vano@mail.mipt.ru>

Co-authored-by: Ned Batchelder <ned@nedbatchelder.com>

The release blog entry is here:
  https://pypy.org/posts/2025/02/pypy-v7319-release.html

Co-authored-by: binbjz <binbjz@gmail.com>

Do not execute conda-specific code if conda is not installed

1) Got rid of useless call to `cat`, much better to simply use sed with
   file as argument.

2) Got rid of `sort -u`. There is no need to sort the list.
   Additionally, the list `pyenv.d/rehash/conda.d/default.list` only has
   unique entries, and even if you have duplicate entries, the function
   will still work. --> No need for sort nor unique.

3) Further improvement is simple, save a cached
cleaned-list-v1.0 in `conda.d` and simple read from that file instead of
doing `sed`, which must be a more expensive operation than simply
reading from file.

Applies to the conda blacklist in `pyenv.d/rehash/conda.d/default.list`
No practical difference, but it looks misplaced when it sits at the end
of the file.

I was doing some debugging with PYENV_DEBUG=1 and noticed that a lot of
work was being done in conda.bash, even though I had not installed any
conda versions like `mambaforge`.

The solution is pretty simple, put all the code inside an if-block.
This aligns with what @varikin found in his pull request #3037

Additionally, I have refactored the code slightly for readability
(created function `build_conda_exclusion_list`), and added comments
which should make it easier to understand what's going on.

This commit simplifies debugging and should reduce the execution time of

```bash
eval "$(pyenv init -)"
```

slightly.

Source tarballs were changed to fix a human error: https://discuss.python.org/t/python-3-14-0-alpha-5/80364/3

Co-authored-by: binbjz <zhaobin@avenir.hk>
Co-authored-by: binbjz <binbjz@gmail.com>

ubuntu-20.04 is being retired by Github
tar_gz is mainly to verify URLs, OS version doesn't matter

* Add miniconda3-25.1.1-0

Co-authored-by: binbjz <zhaobin@avenir.hk>
Co-authored-by: binbjz <binbjz@gmail.com>

Co-authored-by: Dan Dees <dand@appsmiths.com>

Now that ubuntu-24 is out of beta at Github

Since for ubuntu_build, we only use one OS version
and the changes between versions are not as drastic as with MacOS,
it seems safe to have it upgrade automatically.

Only CPython scripts use bundled dependencies for MacOS and two alternative tarballs

* report more progress
* don't download SHA files for unsupported architectures