LST SourceFile for file encoded as ISO-8859 produced with encoding set to UTF-8

[natedanner]

LST produced for rewrite-kubernetes had wrong encoding for the gradlew file @ commit has 331ae5dfe53950c69aac341b7ae0cc060216ba6e
Related to: https://github.com/moderneinc/moderne-scm/issues/724

How are you running OpenRewrite?

Through the Moderne SaaS.

Is your project public? If so, can you share a link to it?
https://github.com/openrewrite/rewrite-kubernetes @ this commit hash 331ae5dfe53950c69aac341b7ae0cc060216ba6e
This file was changed back to UTF-8 with this commit openrewrite/rewrite-kubernetes@d335ee6

What is the smallest, simplest way to reproduce the problem?

• Build an LST for https://github.com/openrewrite/rewrite-kubernetes @ this commit hash 331ae5dfe53950c69aac341b7ae0cc060216ba6e
• Read the LSTs SourceFiles and check the charsetName property. It should match the file on disk

What did you expect to see?

charsetName property equal to ISO-8859

What did you see instead?

charsetName property equal to UTF-8