deps: update dependency com.google.cloud:pubsublite-beam-io to v0.18.0 (

#783)

* deps: update dependency com.google.cloud:pubsublite-beam-io to v0.18.0

* update Beam to 2.31.0

Co-authored-by: Tianzi Cai <tianzi@google.com>

samples/snippets/pom.xml

@@ -38,7 +38,7 @@
     <maven.compiler.target>1.8</maven.compiler.target>
     <maven.compiler.source>1.8</maven.compiler.source>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <beam.version>2.29.0</beam.version>
+    <beam.version>2.31.0</beam.version>
   </properties>
 
   <dependencies>
@@ -65,7 +65,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>pubsublite-beam-io</artifactId>
-      <version>0.17.0</version>
+      <version>0.18.0</version>
     </dependency>
 
     <dependency>