oem-preloader: first release

BUG=b/487383800
TEST=presubmit

Change-Id: I818a3fc85b04e27ca67cd5318ea163124ec04799
Reviewed-on: https://cos-review.googlesource.com/c/cos/tools/+/135161
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
Tested-by: He Gao <hegao@google.com>
Cloud-Build: GCB Service account <228075978874@cloudbuild.gserviceaccount.com>

release/release-versions.yaml

diff --git a/release/release-versions.yaml b/release/release-versions.yaml
index a5b32ee..15994ba 100644
--- a/release/release-versions.yaml
+++ b/release/release-versions.yaml
@@ -60,3 +60,10 @@
     - "latest"
     - "v0.3.9"
   multi-arch: true
+- staging_container_name: "oem-preloader"
+  release_container_name: "oem-preloader"
+  build_tag: "769ca17-ff20c514-b24c-43dc-90d9-2ce840d4349f"
+  release_tags:
+    - "latest"
+    - "v20260227"
+  multi-arch: false