upgrade fastjson & druid

pom.xml

@@ -222,7 +222,7 @@
             <dependency>
                 <groupId>com.alibaba.fastjson2</groupId>
                 <artifactId>fastjson2</artifactId>
-                <version>2.0.15</version>
+                <version>2.0.28</version>
             </dependency>
             <dependency>
                 <groupId>com.google.guava</groupId>
@@ -262,7 +262,7 @@
             <dependency>
                 <groupId>com.alibaba</groupId>
                 <artifactId>druid</artifactId>
-                <version>1.2.15</version>
+                <version>1.2.17</version>
             </dependency>
             <dependency>
                 <groupId>com.lmax</groupId>