chore: bump version to 2.30.1

[drish]

Summary

• Bumps version from 2.30.0 to 2.30.1

Changes since v2.30.0

• fix(emails): make filename and content_disposition nullable in EmailAttachment types (fix(emails): make filename and content_disposition nullable in EmailAttachment types #205)
• chore: GH Actions hardening (chore: GH Actions hardening — pin actions to SHA, add permissions and timeouts #204)
• chore(deps): update Python Docker tag to v3.14.5 (chore(deps): update python docker tag to v3.14.5 #196)

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Summary by cubic

Release resend 2.30.1. Fixes EmailAttachment types by making filename and content_disposition nullable; also hardens GitHub Actions and updates the Python Docker tag to v3.14.5.

^{Written for commit b8aa7c8. 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 trivial version bump in a single file with no logic changes, making it safe for auto-approval.}