build(deps-dev): bump org.eclipse.jetty:jetty-servlet from 10.0.20 to…

… 10.0.21 (#246)

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servlet-javax/pom.xml

@@ -53,7 +53,7 @@
         <dependency>
             <groupId>org.eclipse.jetty</groupId>
             <artifactId>jetty-servlet</artifactId>
-            <version>10.0.20</version>
+            <version>10.0.21</version>
             <scope>test</scope>
         </dependency>
         <dependency>