Fix atom tags

[lonr]

Initial checklist

• I read the support docs
• I read the contributing guide
• I agree to follow the code of conduct
• I searched issues and couldn’t find anything (or linked relevant results below)
• If applicable, I’ve added docs and tests

Description of changes

In atom.js, the categorys of Entries were pushed to the Channel. The logic in rss.js is correct.

This PR fixed that and the corresponding test.

This PR updates the TypeScript version to 5.0 because my PNPM installed version 4.0.* due to the ^4.0.0 specifier in package.json, which did not support the exactOptionalPropertyTypes option in compilerOptions.

[wooorm]

There is was no 4.0.* dependency on TS here. It depended on ^4.0.0, which accepts 4.9.0 for example, too.

If pnpm was installing that a 4.0.* version, you need to fix that on your machine, by updating the pnpm caches.

[wooorm]

Thank you! Released in 1.2.3!