Set correct permissions for cleanup ssh key as well

shared_scripts.yml

@@ -176,6 +176,7 @@ variables:
   script:
     # Change access rights for SSH key to use it later on
     - chmod 600 ${SYNC_KEY}
+    - chmod 600 ${SSH_KEY_CLEANUP_VRDEMO}
     # Find out if it was Windows, WindowsNoEditor, Linux or LinuxNoEditor
     - export PLATFORM_NAME=$(find ${CI_PROJECT_DIR}/Release/${CI_PROJECT_NAME}/ -mindepth 1 -maxdepth 1 -type d -name "*Windows*" -or -name "*Linux*" | head -1 | xargs basename)
     # Copy Thumbnails if they exist