[FLINK-38747][core] Update the annotation of RateLimiter and RateLimiterStrategy interface from @experimental to @PublicEvolving. (#27283)

Author: lvyanquan

flink-core/src/main/java/org/apache/flink/api/connector/source/util/ratelimit/RateLimiter.java

@@ -18,7 +18,7 @@
 
 package org.apache.flink.api.connector.source.util.ratelimit;
 
-import org.apache.flink.annotation.Experimental;
+import org.apache.flink.annotation.PublicEvolving;
 import org.apache.flink.api.connector.source.SourceSplit;
 
 import javax.annotation.concurrent.NotThreadSafe;
@@ -31,7 +31,7 @@
  * @param <SplitT> The type of the source splits.
  */
 @NotThreadSafe
-@Experimental
+@PublicEvolving
 public interface RateLimiter<SplitT extends SourceSplit> {
 
     /**

flink-core/src/main/java/org/apache/flink/api/connector/source/util/ratelimit/RateLimiterStrategy.java

@@ -17,7 +17,7 @@
 
 package org.apache.flink.api.connector.source.util.ratelimit;
 
-import org.apache.flink.annotation.Experimental;
+import org.apache.flink.annotation.PublicEvolving;
 import org.apache.flink.api.connector.source.SourceSplit;
 
 import java.io.Serializable;
@@ -29,7 +29,7 @@
  *
  * @param <SplitT> The type of the source splits.
  */
-@Experimental
+@PublicEvolving
 public interface RateLimiterStrategy<SplitT extends SourceSplit> extends Serializable {
 
     /**