Ready for 3.3.0 PyPI/GitHub release

[Tieqiong]

Release checklist for GitHub contributors

• All PRs/issues attached to the release are merged.
• All the badges on the README are passing.
• License information is verified as correct. If you are unsure, please comment below.
• Locally rendered documentation contains all appropriate pages, including API references (check no modules are
  missing), tutorials, and other human written text is up-to-date with any changes in the code.
• Installation instructions in the README, documentation and on the website (e.g., diffpy.org) are updated and
  tested
• Successfully run any tutorial examples or do functional testing in some other way.
• Grammar and writing quality have been checked (no typos).

Please mention @sbillinge when you are ready for release. Include any additional comments necessary, such as
version information and details about the pre-release.

@sbillinge ready for release!

[sbillinge]

OK, I did the 3.3.0rc0 release. Please check and get back t me

[Tieqiong]

Yes I can see it on pypi. Docs with new version is also released.

Also passing tests for 3.11, 3.12, 3.13

[sbillinge]

ok @Tieqiong I made the full 3.3.0 release to pypi. Please go ahead with the conda-forge workflow.

[bobleesj]

@Tieqiong re-visiting here.

We merged v3.3.0 (supporting py313) on conda-forge but we merged accidentally even though the CI wasn't running and building failed - conda-forge/diffpy.structure-feedstock#26

I suggest that we release v3.3.1 as soon as possible. I've also shared a link under genomics-and-release channel under slack for our current group's plan.

[bobleesj]

@Tieqiong

Currently with @sbillinge, releasing 3.3.0 again via conda-forge here: @sbillinge will merge it if it passes.

conda-forge/diffpy.structure-feedstock#29

[sbillinge]

This can be closed after testing an install and run from conda-forge

[bobleesj]

Locally tested and we can close it - @sbillinge or @Tieqiong

conda create -n diffpy.structure_env diffpy.structure
conda activate diffpy.structure_env 
```

```
Locally tested:
=== 137 passed in 0.83s =====
```

[sbillinge]

closed as completed!