chore(deps): update dependency com.google.cloud:pubsublite-kafka to v…

…0.6.8 (#254)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:pubsublite-kafka](https://togithub.com/googleapis/java-shared-config) | `0.6.7` -> `0.6.8` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:pubsublite-kafka/0.6.8/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:pubsublite-kafka/0.6.8/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:pubsublite-kafka/0.6.8/compatibility-slim/0.6.7)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:pubsublite-kafka/0.6.8/confidence-slim/0.6.7)](https://docs.renovatebot.com/merge-confidence/) |

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README.md

@@ -22,20 +22,20 @@ If you are using Maven, add this to your pom.xml file:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>pubsublite-kafka</artifactId>
-  <version>0.6.7</version>
+  <version>0.6.8</version>
 </dependency>
 ```
 
 If you are using Gradle without BOM, add this to your dependencies
 
 ```Groovy
-implementation 'com.google.cloud:pubsublite-kafka:0.6.7'
+implementation 'com.google.cloud:pubsublite-kafka:0.6.8'
 ```
 
 If you are using SBT, add this to your dependencies
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "pubsublite-kafka" % "0.6.7"
+libraryDependencies += "com.google.cloud" % "pubsublite-kafka" % "0.6.8"
 ```
 
 ## Authentication

samples/install-without-bom/pom.xml

@@ -29,7 +29,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>pubsublite-kafka</artifactId>
-      <version>0.6.7</version>
+      <version>0.6.8</version>
     </dependency>
     <!-- [END pubsublite-kafka_install_without_bom] -->
 

samples/snapshot/pom.xml

@@ -43,7 +43,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>pubsublite-kafka</artifactId>
-      <version>0.6.7</version>
+      <version>0.6.8</version>
     </dependency>
     <dependency>
       <groupId>org.apache.kafka</groupId>

samples/snippets/pom.xml

@@ -45,7 +45,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>pubsublite-kafka</artifactId>
-      <version>0.6.7</version>
+      <version>0.6.8</version>
     </dependency>
     <dependency>
       <groupId>org.apache.kafka</groupId>