updating oci_rules usage

MODULE.bazel

@@ -12,9 +12,9 @@ go_deps = use_extension("@gazelle//:extensions.bzl", "go_deps")
 go_deps.from_file(go_mod = "//:go.mod")
 use_repo(go_deps, "com_github_stretchr_testify", "org_uber_go_zap")
 
-pull = use_extension("@rules_oci//oci:pull.bzl", "pull")
-pull.oci_pull(
+oci = use_extension("@rules_oci//oci:extensions.bzl", "oci")
+oci.pull(
     name = "distroless_base",
-    digest = "sha256:ccaef5ee2f1850270d453fdf700a5392534f8d1a8ca2acda391fbb6a06b81c86",
+    tag = "latest",
     image = "gcr.io/distroless/base",
 )

cmd/demo/BUILD.bazel

@@ -20,7 +20,7 @@ go_binary(
 load("@rules_pkg//:pkg.bzl", "pkg_tar")
 
 pkg_tar(
-    name = "demo_tar",
+    name = "tar",
     srcs = [":demo"],
 )