refactor: Update MAX combinator to handle empty input

The MAX combinator in `combinators.py` has been updated to handle empty input by providing a default value of 1. This change ensures that the MAX combinator returns a valid result even when no functions are provided.

Co-authored-by: dependabot[bot] <support@github.com>

Author: amogorkon

src/fuzzylogic/combinators.py

@@ -65,7 +65,7 @@ def MAX(*guncs):
     funcs = list(guncs)
 
     def F(z):
-        return max(f(z) for f in funcs)
+        return max((f(z) for f in funcs), default=1)
 
     return F
 
@@ -263,12 +263,13 @@ def simple_disjoint_sum(*funcs):  # sourcery skip: unwrap-iterable-construction
     (A AND ~B AND ~C) OR (B AND ~A AND ~C) OR (C AND ~B AND ~A)
     max(min(0,0.5,0), min(0.5,1,0), min(1,0.5,1)) == 0.5
     """
+
     def F(z):
         # Reminder how it works for 2 args
         # x, y = a(z), b(z)
         # return max(min(x, 1-y), min(1-x, y))
 
-        M:set[float] = {
+        M: set[float] = {
             f(z) for f in funcs
         }  # a set of all membership values over all given functions to be iterated over
         # we need to go over each value in the set, calc min(x, inverse(rest)), from that calc max