Bump httpcore version to 4.4.13 (#2928)

Co-authored-by: Zoe Wang <[email protected]>

Author: linzebing

pom.xml

@@ -160,7 +160,7 @@
 
         <jre.version>1.8</jre.version>
         <httpcomponents.httpclient.version>4.5.13</httpcomponents.httpclient.version>
-        <httpcomponents.httpcore.version>4.4.11</httpcomponents.httpcore.version>
+        <httpcomponents.httpcore.version>4.4.13</httpcomponents.httpcore.version>
 
         <!-- Reactive Streams version -->
         <reactive-streams.version>1.0.3</reactive-streams.version>