Update PyPI publish workflow for prereleases (#494)

Workflow now triggers on published and prereleased events, and adds 'skip-existing' to PyPI
publish step. Improves handling of pre-release publishing and artifact
management.

Resolves #490 

- [ ] `docs/` have been added/updated if necessary
- [ ] `make test` has been run locally
- [ ] tests have been added/updated (if applicable)
- [X]
[CHANGELOG.md](https://github.com/mapping-commons/sssom/blob/master/CHANGELOG.md)
has been updated.

---------

Co-authored-by: Copilot <[email protected]>

Author: matentzn

.github/workflows/pypi-publish.yaml

@@ -3,8 +3,8 @@ name: Publish Python Package
 
 on:
   release:
-    # Trigger the workflow only for real releases but not for draft releases
-    types: [created]
+    # Run when a release is published or a prerelease is published (not on draft creation)
+    types: [published, prereleased]
 
 jobs:
   build:
@@ -54,7 +54,7 @@ jobs:
           path: dist
 
       - name: Publish package 📦 to PyPI
-        if: github.event_name == 'release'
         uses: pypa/[email protected]
         with:
-          verbose: true
+          verbose: true
+          skip-existing: true

CHANGELOG.md

@@ -15,6 +15,7 @@
 - Add `curation_rule` and `curation_rule_text` to the `MappingSet` class and made propagatable ([issue](https://github.com/mapping-commons/sssom/issues/464)).
 - Add `cardinality_scope` slot ([issue](https://github.com/mapping-commons/sssom/issues/467)).
 - Add new value `0:0` to the `mapping_cardinality_enum` ([issue](https://github.com/mapping-commons/sssom/issues/477)).
+- Development snapshots of SSSOM schema can now be released using GitHub's pre-release feature ([issue](https://github.com/mapping-commons/sssom/issues/490))
 
 ## SSSOM version 1.0.0