Fix syntax error

src/gbasm/instructions/__init__.py

@@ -6,7 +6,7 @@ from .ld import Ld
 from .fixed import Ccf, Cpl, Daa, Di, Ei, Halt, Nop, Ret, Reti, Rla, Rlca, Rra, Scf, Stop
 
 def get_instructions() -> List[Instruction]:
-    return = [
+    return [
         Ccf(),
         Cpl(),
         Daa(),