m/test/localregistry: use osbase/oci/registry

This replaces the localregistry implementation with a small wrapper
around the new registry package.

The images attribute of the Bazel rule was changed from a list to a
dict, which makes the repository and tag independent from the file path.

Change-Id: I1f6213dd67f7bdcf2373fe136958caa68b9f4d10
Reviewed-on: https://review.monogon.dev/c/monogon/+/4089
Reviewed-by: Tim Windelschmidt <tim@monogon.tech>
Tested-by: Jenkins CI
diff --git a/metropolis/test/launch/BUILD.bazel b/metropolis/test/launch/BUILD.bazel
index 166ba3a..492fdd4 100644
--- a/metropolis/test/launch/BUILD.bazel
+++ b/metropolis/test/launch/BUILD.bazel
@@ -49,8 +49,8 @@
         "//metropolis/node/core/rpc/resolver",
         "//metropolis/proto/api",
         "//metropolis/proto/common",
-        "//metropolis/test/localregistry",
         "//osbase/logbuffer",
+        "//osbase/oci/registry",
         "//osbase/test/qemu",
         "@com_github_cenkalti_backoff_v4//:backoff",
         "@com_github_kballard_go_shellquote//:go-shellquote",