srcJar seems broken when using Gradle 8.13

[LikeTheSalad]

It looks like the jar files download doesn't work with Gradle 8.13, there doesn't seem to be any errors in the logs mentioning a jar download issue, it's just that the proto classes aren't generated.

It was discovered here.

[sashukikim]

The problem is here:

wire/wire-gradle-plugin/src/main/kotlin/com/squareup/wire/gradle/WireExtension.kt

Line 336 in 35956c8

project.file(jar)

Starting from gradle 8.13 project.file(jar) returns file when dependency id string is passed and it considers it as file, and not jar.