Fix: Ensure that components cache keys are ordered before dumping to file.

Reason: The CI/CD automation regenerates the cache file, and commits
the changes if it differs from the previous version.

The only way to ensure semantic equivalence is to sort the keys upon
dump.

platypush/plugins/inspect/_cache.py

@@ -123,6 +123,7 @@ class Cache:
                     'items': self.to_dict(),
                 },
                 cls=Message.Encoder,
+                sort_keys=True,
             ).encode()
         )