Update log4j to 2.17.1 to address CVE-2021-44832. (microsoft#3668)

Author: jeremie1112

samples/java_springboot/05.multi-turn-prompt/pom.xml

@@ -81,17 +81,17 @@
       <dependency>
         <groupId>org.apache.logging.log4j</groupId>
         <artifactId>log4j-api</artifactId>
-        <version>2.17.0</version>
+        <version>2.17.1</version>
       </dependency>
       <dependency>
         <groupId>org.apache.logging.log4j</groupId>
         <artifactId>log4j-core</artifactId>
-        <version>2.17.0</version>
+        <version>2.17.1</version>
       </dependency>
       <dependency>
         <groupId>org.apache.logging.log4j</groupId>
         <artifactId>log4j-to-slf4j</artifactId>
-        <version>2.16.0</version>
+        <version>2.17.1</version>
         <scope>test</scope>
       </dependency>