Phillip Webb 88429b6a66 Use file urls for unpacked jars
Update `JarFileArchive` so that unpacked jars use `file:` URLs rather
than `jar:file:`. This aligns with the behavior of Spring Boot 3.1 and
allows calls to `class.getSigners()` to work again.

Fixes gh-38833
2023-12-17 10:55:31 -08:00
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2023-12-17 10:55:31 -08:00