Update build.gradle.ejs

Author: mshima

generators/spring-boot/templates/build.gradle.ejs

@@ -266,11 +266,11 @@ task cleanResources(type: Delete) {
 
 bootBuildImage {
     builder = "paketobuildpacks/builder-jammy-buildpackless-tiny"
-    buildpacks = ["paketobuildpacks/java"]
-    tags = [
-        "<%- lowercaseBaseName %>"
+    buildpacks = [
+        "paketobuildpacks/java",
         "paketobuildpacks/health-checker"
     ]
+    tags = ["<%- lowercaseBaseName %>"]
     environment = [
         "BPL_SPRING_AOT_ENABLED" : "true",
         "BP_JVM_CDS_ENABLED" : "false",