Make sure ssh key has 600 permission before using

.gitlab-ci.yml

@@ -47,6 +47,10 @@ build-zynthbox-image-armhf:
     - xz -zv --threads=8 --memory=90% ./workspace/$image_name
     - echo "Compressed Image Size -> $(du -h ./workspace/$image_name.xz)"
 
+    # Ensuring key security
+    - echo "Ensuring key security"
+    - chmod 600 ${aptly_ssh_key}
+
     # Push compressed image to pub.zynthbox.io
     - echo "# Push compressed image to pub.zynthbox.io"
     - scp -P 3138 -i "$SSH_KEY_PUB_ZYNTHBOX_IO" -o "StrictHostKeyChecking no" "./workspace/$image_name.xz" zynthbox@pub.zynthbox.io:/mnt/pub_zynthbox_io_volume/ISOs/.ci-testing-isos/
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