chore: bump version to 2.30.0

[drish]

Bumps version from 2.29.0 to 2.30.0.

Changes since v2.29.0

• feat(contacts): add segment_id support to Contacts.list and Contacts.list_async (feat(contacts): add segment_id support to Contacts.list #202)

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Summary by cubic

Bumps the library version from 2.29.0 to 2.30.0. This release publishes segment_id support in Contacts.list and Contacts.list_async.

^{Written for commit abe3e45. Summary will update on new commits.}

[cubic-dev-ai]

No issues found across 1 file

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Auto-approved: This is a safe, routine version bump in version.py from 2.29.0 to 2.30.0.}