fix: replace deprecated StaplerRequest with StaplerRequest2

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: saurabh-oss

src/main/java/io/forgeai/jenkins/config/ForgeAIGlobalConfiguration.java

@@ -10,7 +10,7 @@
 import net.sf.json.JSONObject;
 import org.jenkinsci.Symbol;
 import org.kohsuke.stapler.DataBoundSetter;
-import org.kohsuke.stapler.StaplerRequest;
+import org.kohsuke.stapler.StaplerRequest2;
 import org.kohsuke.stapler.verb.POST;
 
 /**
@@ -54,7 +54,7 @@ public static ForgeAIGlobalConfiguration get() {
     }
 
     @Override
-    public boolean configure(StaplerRequest req, JSONObject json) throws FormException {
+    public boolean configure(StaplerRequest2 req, JSONObject json) throws FormException {
         req.bindJSON(this, json);
         save();
         return true;