Bump version to 1.8, Gson to version 2.8.7

Author: rbygrave

gson-adapter/pom.xml

@@ -9,7 +9,7 @@
 
   <groupId>io.avaje</groupId>
   <artifactId>avaje-http-client-gson</artifactId>
-  <version>1.9</version>
+  <version>1.8</version>
 
   <scm>
     <developerConnection>scm:git:git@github.com:avaje/avaje-http-client.git</developerConnection>
@@ -21,13 +21,13 @@
     <dependency>
       <groupId>com.google.code.gson</groupId>
       <artifactId>gson</artifactId>
-      <version>2.8.6</version>
+      <version>2.8.7</version>
     </dependency>
 
     <dependency>
       <groupId>io.avaje</groupId>
       <artifactId>avaje-http-client</artifactId>
-      <version>1.9</version>
+      <version>1.8</version>
       <scope>provided</scope>
     </dependency>