Playbook fixes

Fixes the local_gen task

Using ansible 2.7 (maybe also using other versions of ansible), running provision.yml fails on this task:

    TASK [locale_gen: generate all locales] ******************************************************
    grep: /etc/locale.gen: No such file or directory
    fatal: [REDACTED]: FAILED! => {"msg": "lookup_plugin.lines(grep -Eo '^ *[^#][^ ]+\\.UTF-8' /etc/locale.gen) returned 2"}

This is because the 'with_lines' is executed on the control host, not the target host. See the documentation

This PR should fix the issue.

Also updates the requirements.yml file with latest tags.