Release 6.4.0.

Change-Id: I44dafddf8fe81ed0ea1c5630297fcfe37393dbbc
diff --git a/runtime/pom.xml b/runtime/pom.xml
index 4fef91f..376f4a5 100644
--- a/runtime/pom.xml
+++ b/runtime/pom.xml
@@ -14,7 +14,7 @@
   <parent>
     <groupId>eu.mulk.quarkus-googlecloud-jsonlogging</groupId>
     <artifactId>quarkus-googlecloud-jsonlogging-parent</artifactId>
-    <version>6.3.1-SNAPSHOT</version>
+    <version>6.4.0</version>
   </parent>
 
   <artifactId>quarkus-googlecloud-jsonlogging</artifactId>
diff --git a/runtime/src/main/java/eu/mulk/quarkus/googlecloud/jsonlogging/runtime/package-info.java b/runtime/src/main/java/eu/mulk/quarkus/googlecloud/jsonlogging/runtime/package-info.java
index 5fb9e48..ac81933 100644
--- a/runtime/src/main/java/eu/mulk/quarkus/googlecloud/jsonlogging/runtime/package-info.java
+++ b/runtime/src/main/java/eu/mulk/quarkus/googlecloud/jsonlogging/runtime/package-info.java
@@ -43,7 +43,7 @@
  *     <dependency>
  *       <groupId>eu.mulk.quarkus-googlecloud-jsonlogging</groupId>
  *       <artifactId>quarkus-googlecloud-jsonlogging</artifactId>
- *       <version>6.3.0</version>
+ *       <version>6.4.0</version>
  *     </dependency>
  *
  *     ...
@@ -59,7 +59,7 @@
  * dependencies {
  *   // ...
  *
- *   implementation("eu.mulk.quarkus-googlecloud-jsonlogging:quarkus-googlecloud-jsonlogging:6.3.0")
+ *   implementation("eu.mulk.quarkus-googlecloud-jsonlogging:quarkus-googlecloud-jsonlogging:6.4.0")
  *
  *   // ...
  * }