Upgrade kafka, protobuf, and vert.x versions (#492)

Closes #489

Signed-off-by: Doug Davis <dug@microsoft.com>

Author: duglin

formats/protobuf/pom.xml

@@ -32,7 +32,7 @@
     <packaging>jar</packaging>
 
     <properties>
-        <protobuf.version>3.15.0</protobuf.version>
+        <protobuf.version>3.21.10</protobuf.version>
         <module-name>io.cloudevents.formats.protobuf</module-name>
     </properties>
 

http/vertx/pom.xml

@@ -31,7 +31,7 @@
     <packaging>jar</packaging>
 
     <properties>
-        <vertx.version>4.2.5</vertx.version>
+        <vertx.version>4.3.6</vertx.version>
         <module-name>io.cloudevents.http.vertx</module-name>
     </properties>
 

kafka/pom.xml

@@ -31,7 +31,7 @@
     <packaging>jar</packaging>
 
     <properties>
-        <kafka.version>2.5.0</kafka.version>
+        <kafka.version>3.0.0</kafka.version>
         <module-name>io.cloudevents.kafka</module-name>
     </properties>
 

pom.xml

@@ -165,7 +165,7 @@
                     <links>
                         <link>https://docs.spring.io/spring-framework/docs/current/javadoc-api/</link>
                         <link>https://jakarta.ee/specifications/platform/8/apidocs/</link>
-                        <link>https://kafka.apache.org/25/javadoc/</link>
+                        <link>https://kafka.apache.org/30/javadoc/</link>
                         <link>https://qpid.apache.org/releases/qpid-proton-j-0.33.7/api/</link>
                         <link>https://fasterxml.github.io/jackson-databind/javadoc/2.10/</link>
                     </links>