Updated antora version in antora-playbook

Relied on BOM to set versions for plugin

docs/antora-playbook.yml

@@ -7,6 +7,7 @@ antora:
     - '@antora/atlas-extension'
     - require: '@springio/antora-extensions/root-component-extension'
       root_component_name: 'cloud-task'
+    - '@springio/antora-extensions/static-page-extension'
 site:
   title: Spring Cloud Task
   url: https://docs.spring.io/spring-cloud-task/reference/
@@ -35,4 +36,4 @@ runtime:
     format: pretty
 ui:
   bundle:
-    url: https://github.com/spring-io/antora-ui-spring/releases/download/v0.3.7/ui-bundle.zip
+    url: https://github.com/spring-io/antora-ui-spring/releases/download/v0.4.2/ui-bundle.zip

docs/pom.xml

@@ -98,15 +98,6 @@
 					<plugin>
 						<groupId>io.spring.maven.antora</groupId>
 						<artifactId>antora-maven-plugin</artifactId>
-						<configuration>
-							<packages>
-								<package>@antora/atlas-extension@1.0.0-alpha.1</package>
-								<package>@antora/collector-extension@1.0.0-alpha.3</package>
-								<package>@asciidoctor/tabs@1.0.0-beta.3</package>
-								<package>@springio/antora-extensions@1.6.0</package>
-								<package>@springio/asciidoctor-extensions@1.0.0-alpha.9</package>
-							</packages>
-						</configuration>
 					</plugin>
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>