OpenNebula: update to 6.10

Checks before update

1. Verify breaking changes and new parameters to be applied
2. Verify if any other services will be impacted
3. Upgrade to 6.8
   1. Upgrade the MooseFS driver
   2. Update the local configuration repository
   3. Upgrade the frontend
   4. Upgrade the hypervisors
4. Upgrade to 6.10
   1. Upgrade the MooseFS driver
   2. Update the local configuration repository
   3. Upgrade the frontend
   4. Upgrade the hypervisors

Service release notes

• Release notes 6.10
• Release notes 6.8