jooby: upgrade to 2.8.4 (#5702)

frameworks/Java/jooby/pom.xml

@@ -8,10 +8,10 @@
   <groupId>com.techempower</groupId>
   <version>2.0</version>
 
-  <name>jooby 2.x</name>
+  <name>jooby</name>
 
   <properties>
-    <jooby.version>2.8.1</jooby.version>
+    <jooby.version>2.8.4</jooby.version>
     <!-- downgrade netty and make pg-client happy -->
     <netty.version>4.1.34.Final</netty.version>
     <postgresql.version>42.2.5</postgresql.version>

frameworks/Kotlin/kooby/pom.xml

@@ -9,10 +9,10 @@
   <groupId>com.techempower</groupId>
   <version>2.0</version>
 
-  <name>kooby: jooby + kotlin</name>
+  <name>kooby: jooby+kotlin</name>
 
   <properties>
-    <jooby.version>2.8.1</jooby.version>
+    <jooby.version>2.8.4</jooby.version>
     <postgresql.version>42.2.5</postgresql.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <maven.compiler.source>1.8</maven.compiler.source>