chore(deps): update dependency org.apache.maven.plugins:maven-checkstyle-plugin to v3.2.0 (#962)

* chore(deps): update dependency org.apache.maven.plugins:maven-checkstyle-plugin to v3.2.0

* add missing docstring

Co-authored-by: Shubha Rajan <[email protected]>

Author: renovate-bot

jdbc/sqlserver/src/main/java/com/google/cloud/sql/sqlserver/SocketFactory.java

@@ -23,6 +23,12 @@
 import java.util.Properties;
 import java.util.logging.Logger;
 
+/**
+* A Microsoft SQL Server {@link SocketFactory} that establishes a secure connection to a 
+* Cloud SQL instance using ephemeral certificates.
+*
+* <p>The heavy lifting is done by the singleton {@link CoreSocketFactory} class.
+*/
 public class SocketFactory extends javax.net.SocketFactory {
 
   private static final Logger logger = Logger.getLogger(SocketFactory.class.getName());

pom.xml

@@ -232,7 +232,7 @@
           <plugin>
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-checkstyle-plugin</artifactId>
-            <version>3.1.2</version>
+            <version>3.2.0</version>
             <configuration>
               <configLocation>google_checks.xml</configLocation>
               <logViolationsToConsole>true</logViolationsToConsole>

r2dbc/core/src/main/java/com/google/cloud/sql/core/CloudSqlConnectionFactory.java

@@ -27,6 +27,9 @@
 import java.util.function.Function;
 import org.reactivestreams.Publisher;
 
+/**
+ *  * {@link ConnectionFactory} for accessing Cloud SQL instances via R2DBC protocol.
+ */
 public class CloudSqlConnectionFactory implements ConnectionFactory {
 
   private Function<ConnectionFactoryOptions, ConnectionFactory> connectionFactoryFactory;