[tests] Allow `run`, `inventory` and `docs` integration tests to create fixtures

[cidrblock]

trafficstars

https://github.com/ansible/ansible-navigator/blob/f4c8d669f75ee68717dcfd890a0a0820bee90e30/tests/integration/actions/run/base.py#L93

This will be consistent with other tests.

Noticed in #685 even after #688 was run and merged

the too-many-local exception can be removed as well

tests/integration/actions/templar/base.py:70:4: R0914: Too many local variables (16/15) (too-many-locals)

in each base class

also- check docs