Releasing 1.2.1

[Olen]

Summary

Patch release. Bumps pyproject.toml from 1.2.0 to 1.2.1.

Merging this PR triggers .github/workflows/release.yml, which will:

1. Tag v1.2.1 on main
2. Auto-generate release notes from PRs merged since v1.2.0
3. Publish to PyPI via OIDC

Headline change in this release

• fix: login restored against the new /auth2/login endpoint (login() fails with 404 — https://api.spond.com/core/v1/login no longer responding #229, fix: update login to /auth2/login endpoint #230) — Spond replaced the /core/v1/login endpoint on 2026-05-13 and the library was returning 404 on every authenticated call. This is the only library-facing change in 1.2.1.

Also included since 1.2.0

• ci: opt-in auto-update of PRs labeled updateme (ci: opt-in auto-update of PRs labeled 'updateme' #231)
• ci(deps): bump softprops/action-gh-release v2 → v3 (build(deps): bump softprops/action-gh-release from 2 to 3 #226)
• feat(ical example): use meetupTimestamp as event start when available (feat(ical): use meetupTimestamp as event start when available #228) — example-script only, no library change

Still open at release time (intentional)

• build(deps): bump actions/setup-python from 5 to 6 #204, build(deps): bump actions/checkout from 4 to 6 #211 — dependabot CI-action bumps; ride into the next release.
• Add update_member and get_members_xlsx methods #197 — needs rebase + docstring cleanup.
• [IMP] add match details in event template to support updating match events #169 — owner question still open.

Test plan

• pytest — 21 passed (main includes the new TestLogin class added in fix: update login to /auth2/login endpoint #230)
• ruff check — clean
• After merge: confirm release workflow produced v1.2.1 tag, GitHub Release, and PyPI artifact.

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