Bump external/Java.Interop from d30d554 to 51b784a (#9241)

* Bump external/Java.Interop from `d30d554` to `51b784a`

Bumps [external/Java.Interop](https://github.com/dotnet/java-interop) from `d30d554` to `51b784a`.
- [Commits](dotnet/java-interop@d30d554...51b784a)

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

Signed-off-by: dependabot[bot] <[email protected]>

* [api-compatibility] Update for interface alternatives that moved Java package.

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Jonathan Pobst <[email protected]>

Author: dependabot[bot]