build a multi-architecture docker manifest list

pom.xml

@@ -73,8 +73,8 @@
     <stripe.version>23.10.0</stripe.version>
     <swagger.version>2.2.22</swagger.version>
 
-    <!-- 21.0.3_9-jre-jammy -->
-    <docker.image.sha256>434c26bd14f3208b9e739277e2679c2c7ef3f85d4a4f32c5a27b12a7fc206b09</docker.image.sha256>
+    <!-- 21.0.4_7-jre-jammy (note: always use the multi-arch manifest *LIST* here) -->
+    <docker.image.sha256>870aae69d4521fdaf26e952f8026f75b37cb721e6302d4d4d7100f6b09823057</docker.image.sha256>
 
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>

service/pom.xml

@@ -603,6 +603,16 @@
             <configuration>
               <from>
                 <image>eclipse-temurin@sha256:${docker.image.sha256}</image>
+                <platforms>
+                  <platform>
+                    <architecture>amd64</architecture>
+                    <os>linux</os>
+                  </platform>
+                  <platform>
+                    <architecture>arm64</architecture>
+                    <os>linux</os>
+                  </platform>
+                </platforms>
               </from>
               <to>
                 <image>${docker.repo}:${project.version}</image>