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/e2e/BUILD.bazel b/metropolis/test/e2e/BUILD.bazel
index 85ef13a..dc43be6 100644
--- a/metropolis/test/e2e/BUILD.bazel
+++ b/metropolis/test/e2e/BUILD.bazel
@@ -2,12 +2,12 @@
 
 localregistry_manifest(
     name = "testimages_manifest",
-    images = [
-        "//metropolis/test/e2e/selftest:selftest_image",
-        "//metropolis/test/e2e/persistentvolume:persistentvolume_image",
-        "//metropolis/test/e2e/httpserver:httpserver_image",
-        "//metropolis/test/e2e/connectivity/agent:agent_image",
-    ],
+    images = {
+        "selftest:latest": "//metropolis/test/e2e/selftest:selftest_image",
+        "persistentvolume:latest": "//metropolis/test/e2e/persistentvolume:persistentvolume_image",
+        "httpserver:latest": "//metropolis/test/e2e/httpserver:httpserver_image",
+        "connectivity/agent:latest": "//metropolis/test/e2e/connectivity/agent:agent_image",
+    },
     visibility = [
         "//metropolis/test/e2e/suites:__subpackages__",
     ],