Rollup generates malformed URL with import.meta.ROLLUP_FILE_URL if asset name contains %

[sapphi-red]

Rollup Version

4.13.0

Operating System (or Browser)

Stackblitz

Node Version (if applicable)

No response

Link To Reproduction

https://stackblitz.com/edit/rollup-repro-xuenud?file=rollup.config.js

Expected Behaviour

Rollup does not generate a malformed URL. So the output is var main = new URL('assets/te%252-C4X7hChn.txt', import.meta.url).href;.

Actual Behaviour

Rollup generates a malformed URL. So the output is var main = new URL('assets/te%2-C4X7hChn.txt', import.meta.url).href;.

[sapphi-red]

Adding % to the default sanitizeFileName (related: #5441) seems to work for this issue as well.