fix: pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-ORGXERIALSNAPPY-5710960
- https://snyk.io/vuln/SNYK-JAVA-ORGXERIALSNAPPY-5918282
- https://snyk.io/vuln/SNYK-JAVA-ORGXERIALSNAPPY-5710959
- https://snyk.io/vuln/SNYK-JAVA-ORGXERIALSNAPPY-5710961

Author: snyk-bot

pom.xml

@@ -66,7 +66,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>pubsublite-kafka</artifactId>
-      <version>1.1.2</version>
+      <version>1.2.1</version>
     </dependency>
     <dependency>
       <groupId>com.google.cloud</groupId>
@@ -272,10 +272,8 @@
                 </excludes>
               </artifactSet>
               <transformers>
-                <transformer
-                    implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
-                <transformer
-                    implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer"/>
+                <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
+                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer"/>
               </transformers>
             </configuration>
           </execution>