Update dependency rss to v0.3.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rss	0.2.9 -> 0.3.0

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Release Notes

ruby/rss (rss)

v0.3.0: rss 0.3.0 - 2023-08-12

Compare Source

Improvements

• itunes: Added support for <itunes:type>.

  GH-16

  Patch by Luis Alfredo Lorenzo.

• itunes: Added support for <itunes:episode> and <itunes:season>.

  GH-31

  Patch by Daniel-Ernest Luff.

• itunes: Added support for <itunes:title>.

  GH-44

  Patch by Ryan Brunner.

• itunes: Added support for <itunes:episodeType>.

  GH-45

  Reported by Tim Uckun.

Thanks

• Luis Alfredo Lorenzo

• Daniel-Ernest Luff

• Ryan Brunner

• Tim Uckun

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[larouxn]

Changelog

• https://github.com/ruby/rss/releases/tag/0.3.0

Looks like it's basically just adding some iTunes specific features.