Bump next snapshot (#4666)

Author: JesseLovelace

google-cloud-contrib/google-cloud-logging-logback/pom.xml

@@ -5,7 +5,7 @@
   <modelVersion>4.0.0</modelVersion>
 
   <artifactId>google-cloud-logging-logback</artifactId>
-  <version>0.83.0-alpha</version><!-- {x-version-update:google-cloud-logging-logback:current} -->
+  <version>0.83.1-alpha-SNAPSHOT</version><!-- {x-version-update:google-cloud-logging-logback:current} -->
   <packaging>jar</packaging>
   <name>Google Cloud Logging Logback Appender</name>
   <url>https://github.com/googleapis/google-cloud-java/tree/master/google-cloud-clients/google-cloud-contrib/google-cloud-logging-logback</url>
@@ -20,7 +20,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-contrib</artifactId>
-    <version>0.83.0-alpha</version><!-- {x-version-update:google-cloud-contrib:current} -->
+    <version>0.83.1-alpha-SNAPSHOT</version><!-- {x-version-update:google-cloud-contrib:current} -->
   </parent>
   <dependencies>
     <dependency>