Bump to 1.8.1-SNAPSHOT to release prior to removal of some deprecated methods

Author: rbygrave

client/pom.xml

@@ -9,7 +9,7 @@
 
   <groupId>io.avaje</groupId>
   <artifactId>avaje-http-client</artifactId>
-  <version>1.9-SNAPSHOT</version>
+  <version>1.8.1-SNAPSHOT</version>
 
   <scm>
     <developerConnection>scm:git:git@github.com:avaje/avaje-http-client.git</developerConnection>