fix: use toLowerCamelCase for swift & dart.

Author: ItzNotABug

src/SDK/Language/Dart.php

@@ -507,7 +507,7 @@ public function getFilters(): array
                 return implode("\n", $value);
             }, ['is_safe' => ['html']]),
             new TwigFilter('caseEnumKey', function (string $value) {
-                return $this->toCamelCase($value);
+                return $this->toLowerCamelCase($value);
             }),
         ];
     }

src/SDK/Language/Swift.php

@@ -471,7 +471,7 @@ public function getFilters(): array
                 if (isset($this->getIdentifierOverrides()[$value])) {
                     $value = $this->getIdentifierOverrides()[$value];
                 }
-                return $this->toCamelCase($value);
+                return $this->toLowerCamelCase($value);
             }),
         ];
     }