Remove character length limit in IsFloat and IsInt test functions (#179)

The character length constraints previously set on the testValue method
in the IsFloat and IsInt classes have been removed. This change ensures
that the functions can validate floats and integers of any length.

src/Rules/Cell/IsFloat.php

@@ -45,11 +45,6 @@ public function validateRule(string $cellValue): ?string
 
     public static function testValue(string $cellValue): bool
     {
-        $maxLimit = 18;
-        if (\strlen($cellValue) > $maxLimit) {
-            return false;
-        }
-
         return Validator::floatVal()->validate($cellValue);
     }
 }

src/Rules/Cell/IsInt.php

@@ -45,11 +45,6 @@ public function validateRule(string $cellValue): ?string
 
     public static function testValue(string $cellValue): bool
     {
-        $maxLimit = 19;
-        if (\strlen($cellValue) > $maxLimit) {
-            return false;
-        }
-
         return Validator::intVal()->validate($cellValue);
     }
 }