Explicitly set release latest to false

This change explicitly sets mainline releases as not latest.

Signed-off-by: Austin Vazquez <macedonv@amazon.com>

Author: austinvazquez

.github/workflows/release.yml

@@ -156,3 +156,4 @@ jobs:
           body_path: ./builds/containerd-release-notes/release-notes.md
           files: |
             builds/release-tars-**/*
+          make_latest: false