reactor：优化日志格式，解决 FILE 里存在 highlight、cyan高亮

reactor：弱化对 skywalking 依赖，可按需引入，更灵活

yudao-framework/yudao-spring-boot-starter-monitor/pom.xml

@@ -44,18 +44,22 @@
         <dependency>
             <groupId>io.opentracing</groupId>
             <artifactId>opentracing-util</artifactId>
+            <optional>true</optional>
         </dependency>
         <dependency>
             <groupId>org.apache.skywalking</groupId>
             <artifactId>apm-toolkit-trace</artifactId>
+            <optional>true</optional>
         </dependency>
         <dependency>
             <groupId>org.apache.skywalking</groupId>
             <artifactId>apm-toolkit-logback-1.x</artifactId>
+            <optional>true</optional>
         </dependency>
         <dependency>
             <groupId>org.apache.skywalking</groupId>
             <artifactId>apm-toolkit-opentracing</artifactId>
+            <optional>true</optional>
         </dependency>
 
         <!-- Micrometer 对 Prometheus 的支持 -->