[Medium Impact Change]: Update references to nanorc in our integrationtests to drunc or a more generic name

[bieryAtFnal]

Description

Currently, the integrationtest infrastructure and many/all of our regression/integtests refer to nanorc. This is left over from before we transitioned from nanorc to drunc. This request is to update the name either to drunc or to a generic name that has similar meaning.

Related issues and PRs

I expect that the following repos will be affected by this change:

• integrationtest, daqsystemtest, dfmodules, hsilibs, listrev, trigger, asiolibs, crtmodules

Of course, this list should be updated as needed when the changes are made, and links to the relevant PRs in the various repos should be listed here.

Impact radius

Medium

Impact on developers and users

In principle, average users won't notice any differences - existing regression tests should continue to run successfully.

Developers who write or modify integtests will notice the new naming and should take it into account when they make changes.

Useful coordination

This change, when it happens, should probably be mentioned at a Software Integration and Testing meeting, but generally, all we probably need to do is alert users and developers when the changes are merged to develop branches.

Testing suggestions and/or changes needed in testing

Run the full set of integtests. That can be done by checking out all repos to a local software area and running dbt-build --integtest.

Anything else?

No response