Bump external/Java.Interop from d7f41c4 to 8e63cc8 (#8388)

Bumps [external/Java.Interop](https://github.com/xamarin/java.interop) from `d7f41c4` to `8e63cc8`.
- [Commits](dotnet/java-interop@d7f41c4...8e63cc8)

---
updated-dependencies:
- dependency-name: external/Java.Interop
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]