treewide: replace rules_docker with rules_oci

rules_docker is not maintained anymore and recommends migration to
rules_oci

Change-Id: I089f3cf44888b3c3c0baa2c84a319b04b1a7dec4
Reviewed-on: https://review.monogon.dev/c/monogon/+/2712
Tested-by: Jenkins CI
Reviewed-by: Lorenz Brun <lorenz@monogon.tech>
diff --git a/build/platforms/BUILD.bazel b/build/platforms/BUILD.bazel
index 4025c0a..a238039 100644
--- a/build/platforms/BUILD.bazel
+++ b/build/platforms/BUILD.bazel
@@ -5,6 +5,7 @@
         "@platforms//os:linux",
         "@platforms//cpu:x86_64",
     ],
+    visibility = ["//visibility:public"],
 )
 
 # EFI preboot environment for x86_64 machines.
@@ -26,4 +27,5 @@
         "@platforms//cpu:x86_64",
         "//build/platforms/linkmode:musl-static",
     ],
+    visibility = ["//visibility:public"],
 )