Gazelle should extract module mappings from imported foo.MODULE.bazel files

[mortenmj]

What version of gazelle are you using?

0.36.0

What version of rules_go are you using?

0.47.1

What version of Bazel are you using?

7.2.0rc1

Does this issue reproduce with the latest releases of all the above?

Yes

What operating system and processor architecture are you using?

Linux/AMD64

What did you do?

Moved rules_go import/setup to separate go.MODULE.bazel and imported from MODULE.bazel

What did you expect to see?

No changes to rules_go imports

What did you see instead?

When running Gazelle, imports from rules_go change from our apparent name to @@rules_go, e.g.:

+        "@@rules_go~//go/runfiles",
         "@com_github_stretchr_testify//suite",
-        "@io_bazel_rules_go//go/runfiles:go_default_library",