Default for dict.get(). Possible new rule

Hi,
I am not fully sure, so, it's more about starting discussion, but have a feeling it might be good to have a rule for such cases.
There is a standard way to get default while getting key's value from a dictionary:
```
mydict.get("key_name", default_value)
```
and it works fine in most of the cases, but it's easy to forget that it will set default only if key is not present in dict. If key is present and have some empty value like `None` get() will not return default:
```
>>> mydict = dict(key=None)
>>> print(mydict.get("key", 0))
None
```
It's correct and [documented](https://docs.python.org/3/library/stdtypes.html#dict.get) behaviour, but can confuse, sometimes correct way is:
```
mydict.get("key") or 0
```
but probably linter can't know which way correct in particular cases.

Start with the proposed dict.get() and `mydict.get("key") or 0` examples, then review the linked Python dict.get documentation. The issue does not name a Ruff file, test, or settled rule; work is not ready until the rule's intended behavior and completion criteria are agreed.

Written by the indexing model from the issue text.