[Adjust Rule] loosen SIM115 when just opening a file without reference

[jamesbraza]

Desired change

• Rule(s): SIM115
• Adjustment: should not be triggered when not referencing the return

Explanation

Why is the adjustment necessary / better?

When not referencing the return of open, context management isn't necessary.

Example

This is an example where the mentioned rule(s) would currently be suboptimal:

# Not referencing the return, simply just creating an empty file
open(path, mode="w")