Docs: add awards + subjects deployment to upgrade recipes

[0einstein0]

Add the steps for awards + subjects deployment in the official migration docs:

https://github.com/inveniosoftware/docs-invenio-rdm/blob/master/docs/releases/upgrading/upgrade-v13.0.md

[alejandromumo]

The placeholder docs look OK, however it's missing the recipes. Do you want to add them here or have other plans?