[ISSUE apache#4873] Optimize some configuration information of HTTP Sink Connector (apache#4874)

Author: cnzakii

Diff for: eventmesh-connectors/eventmesh-connector-http/src/main/java/org/apache/eventmesh/connector/http/sink/config/HttpRetryConfig.java

@@ -21,8 +21,8 @@
 
 @Data
 public class HttpRetryConfig {
-    // maximum number of retries, default 3, minimum 0
-    private int maxRetries = 3;
+    // maximum number of retries, default 2, minimum 0
+    private int maxRetries = 2;
 
     // retry interval, default 2000ms
     private int interval = 2000;

Diff for: eventmesh-connectors/eventmesh-connector-http/src/main/resources/sink-config.yml

@@ -28,7 +28,6 @@ connectorConfig:
   connectorName: httpSink
   urls:
    - http://127.0.0.1:8987/test
-  ssl: false
   keepAlive: true
   keepAliveTimeout: 60000
   idleTimeout: 5000   # timeunit: ms, recommended scope: common(5s - 10s), webhook(15s - 60s)

Diff for: eventmesh-connectors/eventmesh-connector-http/src/test/resources/sink-config.yml

@@ -28,7 +28,6 @@ connectorConfig:
   connectorName: httpSink
   urls:
     - http://127.0.0.1:8987/test
-  ssl: false
   keepAlive: true
   keepAliveTimeout: 60000
   idleTimeout: 15000   # timeunit: ms, recommended scope: common(5s - 10s), webhook(15s - 60s)