Apply multi-arch hints

Apply hints suggested by the multi-arch hinter.

• libcommons-net-java: Add Multi-Arch: foreign. This fixes: libcommons-net-java could be marked Multi-Arch: foreign. (ma-foreign)

Note that in some cases, these multi-arch hints may trigger lintian warnings until the dependencies of the package support multi-arch. This is expected, see https://janitor.debian.net/multiarch-fixes#why-does-lintian-warn for details.

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Build and test logs for this branch can be found at https://janitor.debian.net/run/a26f1880-0ff3-43ef-9adf-a76536090bca.

debian/control

@@ -22,6 +22,7 @@ Package: libcommons-net-java
 Architecture: all
 Depends: ${misc:Depends}
 Suggests: libcommons-net-java-doc
+Multi-Arch: foreign
 Description: Apache Commons Net - Java client API for basic Internet protocols
  The Apache Commons Net library implements the client side of many basic
  Internet protocols. The purpose of the library is to provide fundamental