Make pullFixture a task dependency of resolveAllDependencies (#38956)

* Make pullFixture a task dependency of resolveAllDependencies

With this change we will pull the docker test fixtures ( and thus cache
the images ) for older versions too as the `resolveAllDependencies` is
already being called on the bwc checkouts too.

Author: alpar-t

.ci/packer_cache.sh

@@ -16,4 +16,4 @@ while [ -h "$SCRIPT" ] ; do
 done
 
 source $(dirname "${SCRIPT}")/java-versions.properties
-JAVA_HOME="${HOME}"/.java/${ES_BUILD_JAVA} ./gradlew --parallel  resolveAllDependencies composePull
+JAVA_HOME="${HOME}"/.java/${ES_BUILD_JAVA} ./gradlew --parallel  resolveAllDependencies

build.gradle

@@ -623,9 +623,10 @@ if (System.properties.get("build.compare") != null) {
 
 allprojects {
   task resolveAllDependencies {
-    doLast {
-      configurations.findAll { it.isCanBeResolved() }.each { it.resolve() }
-    }
+      dependsOn tasks.matching { it.name == "pullFixture"}
+      doLast {
+        configurations.findAll { it.isCanBeResolved() }.each { it.resolve() }
+      }
   }
 }