RSS feed with application/rss+xml returned as Blob instead of text

[dword-design]

Environment

ofetch@1.5.1
node@22.21.1 (but not relevant)

Reproduction

I think it's obvious because the mime type is not part of textTypes.

Describe the bug

ofetch detects the return type from the content-type response header. It works for application/xml, but application/rss+xml is not in the set of text content types.

Additional context

No response

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