Use restricted variable access for constant in S3EndpointUtils class

Author: varunnvs92

services/s3/src/main/java/software/amazon/awssdk/services/s3/internal/S3EndpointUtils.java

@@ -37,7 +37,7 @@
 @SdkInternalApi
 public final class S3EndpointUtils {
 
-    public static final List<Class<?>> ACCELERATE_DISABLED_OPERATIONS = Arrays.asList(
+    private static final List<Class<?>> ACCELERATE_DISABLED_OPERATIONS = Arrays.asList(
         ListBucketsRequest.class, CreateBucketRequest.class, DeleteBucketRequest.class);
 
     private S3EndpointUtils() {