Specify Java target explicitly

pom.xml

@@ -24,6 +24,7 @@
   <properties>
     <com.io7m.org.immutables.value.version>2.6.1</com.io7m.org.immutables.value.version>
     <io7m.api.previousVersion>0.0.6</io7m.api.previousVersion>
+    <io7m.java.targetJavaVersion>21</io7m.java.targetJavaVersion>
   </properties>
 
   <licenses>
@@ -64,24 +65,24 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.4.7</version>
+      <version>1.4.14</version>
     </dependency>
 
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-api</artifactId>
-      <version>2.0.7</version>
+      <version>2.0.10</version>
     </dependency>
 
     <dependency>
       <groupId>org.apache.activemq</groupId>
       <artifactId>artemis-core-client</artifactId>
-      <version>2.28.0</version>
+      <version>2.31.2</version>
     </dependency>
     <dependency>
       <groupId>org.apache.activemq</groupId>
       <artifactId>artemis-commons</artifactId>
-      <version>2.28.0</version>
+      <version>2.31.2</version>
     </dependency>
 
     <dependency>
@@ -99,7 +100,7 @@
     <dependency>
       <groupId>org.immutables</groupId>
       <artifactId>value</artifactId>
-      <version>2.9.3</version>
+      <version>2.10.0</version>
       <scope>provided</scope>
     </dependency>