nixos-rebuild-ng: fix mypy issues

pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/constants.py

@@ -1,3 +1,4 @@
+# mypy: disable-error-code=comparison-overlap
 from typing import Final
 
 # Build-time flags

pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/models.py

@@ -8,7 +8,7 @@ from typing import Any, ClassVar, Self, TypedDict, override
 
 from .process import Remote, run_wrapper
 
-type ImageVariants = list[str]
+type ImageVariants = dict[str, str]
 
 
 class NixOSRebuildError(Exception):

pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/utils.py

@@ -14,7 +14,7 @@ class LogFormatter(logging.Formatter):
     }
 
     @override
-    def format(self, record: logging.LogRecord) -> str:
+    def format(self, record: logging.LogRecord) -> Any:
         record.levelname = record.levelname.lower()
         formatter = self.formatters.get(record.levelno, self.formatters["DEFAULT"])
         return formatter.format(record)