Bump aws/etcdadm-controller to latest release

Author: eks-distro-pr-bot

UPSTREAM_PROJECTS.yaml

@@ -35,7 +35,7 @@ projects:
             go_version: "1.24"
       - name: etcdadm-controller
         versions:
-          - tag: v1.0.26
+          - tag: v1.0.27
             go_version: "1.24"
       - name: rolesanywhere-credential-helper
         versions: