Ignore config models from coverage

[coignetp]

What does this PR do?

There Sync config models PRs are adding a folder to every integration. However, this folder is validated the the ddev command, so codecov does not consider it tested.

Having these folders it the code coverage seems irrelevant.

Motivation

Additional Notes

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• PR title must be written as a CHANGELOG entry (see why)
• Files changes must correspond to the primary purpose of the PR as described in the title (small unrelated changes should have their own PR)
• PR must have changelog/ and integration/ labels attached

[ofek]

Let's only modify

integrations-core/.coveragerc

Line 11 in 215297f

omit =

with a TODO comment saying to remove when we drop Python 2 and are then able to use them