Merge pull request #1258 from gboutry/fix/machine-addresses-hint

#1258

#### Description

Having `list[str]` has type-hinting made working with a type-checker awkward as an addresses is defined as a dict of mostly [str, str] key-values pairs, with one key-value being a [str, boolean] key-value pairs.

#### QA Steps
Just a type hint change

#### Notes & Discussion

I chose not to type as `typing.List[typing.Dict[str, typing.Union[str, boolean]]]` as it would make working with that type also awkward...

https://github.com/juju/python-libjuju/blob/fdbbbe9ccbbeb596fc500fdf6225ea937856f507/juju/client/schemas-juju-3.6.0.json#L10586

Author: jujubot

juju/machine.py

@@ -227,7 +227,7 @@ async def ssh(
         return stdout.decode()
 
     @property
-    def addresses(self) -> typing.List[str]:
+    def addresses(self) -> typing.List[dict]:
         """Returns the machine addresses."""
         return self.safe_data["addresses"] or []