Update dependency io.ktor:ktor-server-netty to v1.2.5 (#1724)

Author: renovate-bot

appengine-java11/kotlin-ktor/pom.xml

@@ -63,7 +63,7 @@ limitations under the License.
         <dependency>
             <groupId>io.ktor</groupId>
             <artifactId>ktor-server-netty</artifactId>
-            <version>1.2.2</version>
+            <version>1.2.5</version>
         </dependency>
         <dependency>
             <groupId>ch.qos.logback</groupId>