enable FBT002 ruff rule, resolve issues

Author: mr-mixas

nested_diff/__init__.py

@@ -100,6 +100,7 @@ class Differ:
 
     def __init__(  # noqa: PLR0913
         self,
+        *,
         A=True,  # noqa: N803
         N=True,  # noqa: N803
         O=True,  # noqa: E741 N803
@@ -253,7 +254,7 @@ class Iterator:
 
     default_iterator = DEFAULT_HANDLER.iterate_diff
 
-    def __init__(self, handlers=None, sort_keys=False):
+    def __init__(self, *, handlers=None, sort_keys=False):
         """Initialize iterator.
 
         Args:

nested_diff/formatters.py

@@ -27,6 +27,7 @@ class AbstractFormatter:
 
     def __init__(
         self,
+        *,
         handlers=None,
         indent='  ',
         line_separator='\n',

nested_diff/handlers.py

@@ -148,7 +148,7 @@ class FloatHandler(ScalarHandler):
 
     handled_type = float
 
-    def __init__(self, nans_equal=False):
+    def __init__(self, *, nans_equal=False):
         """Initialize handler.
 
         Args:

pyproject.toml

@@ -97,7 +97,6 @@ ignore = [
     'ANN',  # TODO: enable
     'EM101',  # Exception must not use a string literal, assign to variable...
     'EM102',  # Exception must not use an f-string literal
-    'FBT002',  # TODO: enable
     'PTH',  # ... should be replaced by `Path...
     'SIM105',  # contextlib.suppress is slower than try-except-pass
     'TRY003',  # Avoid specifying long messages outside the exception class