nextchanges: Cut over to upstream tagging.py

[janniklasrose]

Caution

Do not merge until upstream changes to tagging.yml and tagging.py are landed and consumed

Remove release_tagging.py wrapper and cut over to tagging.py for .nextchanges/ handling

CI on Changelog Preview will continue to fail until the cutover because the current tagging.py doesn't support/respect --preview.

[github-actions]

Approval status: pending

/internal/ - needs approval

Files: internal/genkit/release_tagging.py, internal/genkit/release_tagging.py.lock
Suggested: @simonfaltum
Also eligible: @rauchy, @tanmay-db, @renaudhartert-db, @hectorcast-db, @parthban-db, @Divyansh-db, @tejaskochar-db, @mihaimitrea-db, @chrisst

General files (require maintainer)

Files: .github/workflows/changelog-preview.yml, .github/workflows/tagging.yml, Taskfile.yml
Based on git history:

• @pietern -- recent work in ./, .github/workflows/

_{Any maintainer (@andrewnester, @anton-107, @denik, @pietern, @shreyas-goenka, @simonfaltum, @renaudhartert-db, @lennartkats-db) can approve all areas.
See OWNERS for ownership rules.}

[eng-dev-ecosystem-bot]

Integration test report

Commit: df48f1b

Run: 29995186384

	Env	🟨​KNOWN	💚​RECOVERED	🙈​SKIP	✅​pass	🙈​skip	Time
💚​	aws linux		4	4	322	1057	5:06
💚​	aws windows		4	4	324	1055	6:47
💚​	azure linux		4	4	322	1056	5:25
💚​	azure windows		4	4	324	1054	6:46
🟨​	gcp linux	3	1	4	321	1058	9:36
🟨​	gcp windows	3	1	4	323	1056	9:54

8 interesting tests: 4 SKIP, 3 KNOWN, 1 RECOVERED

	Test Name	aws linux	aws windows	azure linux	azure windows	gcp linux	gcp windows
💚​	TestAccept	💚​R	💚​R	💚​R	💚​R	💚​R	💚​R
🙈​	TestAccept/bundle/invariant/no_drift	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S
🙈​	TestAccept/bundle/resources/vector_search_endpoints/drift/recreated_same_name	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S
🙈​	TestAccept/bundle/resources/vector_search_indexes/recreate/embedding_dimension	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S
🙈​	TestAccept/ssh/connection	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S
🟨​	TestFetchRepositoryInfoAPI_FromRepo	💚​R	💚​R	💚​R	💚​R	🟨​K	🟨​K
🟨​	TestFetchRepositoryInfoAPI_FromRepo/root	💚​R	💚​R	💚​R	💚​R	🟨​K	🟨​K
🟨​	TestFetchRepositoryInfoAPI_FromRepo/subdir	💚​R	💚​R	💚​R	💚​R	🟨​K	🟨​K

Top 3 slowest tests (at least 2 minutes):

duration	env	testname
5:43	aws windows	TestAccept
4:26	azure windows	TestAccept
4:06	gcp windows	TestAccept