chore: upgrade swagger-ui from v5.30.3 to v5.31.0 (#390)

Update swagger-ui static resources and version constant to v5.31.0

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Sonnet 4.5 <[email protected]>

Author: CodeCasterX

framework/fit/java/fit-builtin/plugins/fit-http-openapi3-swagger/src/main/java/modelengine/fit/http/openapi3/swagger/builder/InfoBuilder.java

@@ -22,7 +22,7 @@
  */
 public class InfoBuilder implements EntityBuilder<Info> {
     private static final String FIT_VERSION = "3.6.2-SNAPSHOT";
-    private static final String SWAGGER_UI_VERSION = "v5.30.3";
+    private static final String SWAGGER_UI_VERSION = "v5.31.0";
 
     private final ApplicationConfig applicationConfig;