coveralls/coverage dependency error

### Context
An error message I noticed during smasher image build

### Problem or idea

```
#17 7.571 ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
#17 7.571 coveralls 3.1.0 requires coverage<6.0,>=4.1, but you have coverage 7.0.3 which is incompatible.
```

### Solution or next step

Resolve dependency conflict for smasher and other images (if any).

Start with the smasher image build and inspect where coveralls 3.1.0 and coverage 7.0.3 are declared. Check other images for the same incompatible requirements; done means the builds no longer report this dependency conflict.

Written by the indexing model from the issue text.