fixup! fixup! Use Signed Binaries for Docker Build

Author: sheylatrudo

.pipelines/build/scripts/cni.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 set -eux
 
-[[ $OS =~ windows ]] && FILE_EXT='exe' || FILE_EXT=''
+[[ $OS =~ windows ]] && FILE_EXT='.exe' || FILE_EXT=''
 
 mkdir -p "$OUT_DIR"/files
 mkdir -p "$OUT_DIR"/bin