fixup: add toBuilder

Signed-off-by: Todd Baert <[email protected]>

Author: toddbaert

providers/flagd/src/main/java/dev/openfeature/contrib/providers/flagd/FlagdOptions.java

@@ -19,7 +19,7 @@
 /**
  * FlagdOptions is a builder to build flagd provider options.
  */
-@Builder
+@Builder(toBuilder = true)
 @Getter
 @SuppressWarnings("PMD.TooManyStaticImports")
 public class FlagdOptions {