refactor: Update getPluginSchema method to return a list of objects instead of JsonNode

Author: nsarupr

app/server/appsmith-server/src/main/java/com/appsmith/server/plugins/solutions/PluginSchemaSolutionCE.java

@@ -1,8 +1,9 @@
 package com.appsmith.server.plugins.solutions;
 
-import com.fasterxml.jackson.databind.JsonNode;
 import reactor.core.publisher.Mono;
 
+import java.util.List;
+
 public interface PluginSchemaSolutionCE {
-    Mono<JsonNode> getPluginSchema(String pluginId);
+    Mono<List<Object>> getPluginSchema(String pluginId);
 }

app/server/appsmith-server/src/main/java/com/appsmith/server/plugins/solutions/PluginSchemaSolutionCEImpl.java

@@ -1,13 +1,14 @@
 package com.appsmith.server.plugins.solutions;
 
-import com.fasterxml.jackson.databind.JsonNode;
 import org.springframework.stereotype.Component;
 import reactor.core.publisher.Mono;
 
+import java.util.List;
+
 @Component
 public class PluginSchemaSolutionCEImpl implements PluginSchemaSolutionCE {
     @Override
-    public Mono<JsonNode> getPluginSchema(String pluginId) {
+    public Mono<List<Object>> getPluginSchema(String pluginId) {
         return Mono.empty();
     }
 }