chore(main): release 1.1.1-SNAPSHOT (googleapis#252)

🤖 I have created a release *beep* *boop*
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### Updating meta-information for bleeding-edge SNAPSHOT release.

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This PR was generated with [Release Please](https://togithub.com/googleapis/release-please). See [documentation](https://togithub.com/googleapis/release-please#release-please).

Author: release-please[bot]

pom.xml

@@ -3,7 +3,7 @@
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>pubsub-group-kafka-connector</artifactId>
-  <version>1.1.0</version><!-- {x-version-update:pubsub-group-kafka-connector:current} -->
+  <version>1.1.1-SNAPSHOT</version><!-- {x-version-update:pubsub-group-kafka-connector:current} -->
   <packaging>jar</packaging>
   <name>Pub/Sub Group Kafka Connector</name>
   <url>https://github.com/googleapis/java-pubsub-group-kafka-connector</url>

versions.txt

@@ -1,4 +1,4 @@
 # Format:
 # module:released-version:current-version
 
-pubsub-group-kafka-connector:1.1.0:1.1.0
+pubsub-group-kafka-connector:1.1.0:1.1.1-SNAPSHOT