Authenticate to elastic docker registry for resolving wolfi image (elastic#114347)

We need to resolve the latest wolfi image from our docker registry

Author: breskeby

.buildkite/pipelines/dra-workflow.yml

@@ -2,6 +2,7 @@ steps:
   - command: .buildkite/scripts/dra-workflow.sh
     env:
       USE_DRA_CREDENTIALS: "true"
+      USE_PROD_DOCKER_CREDENTIALS: "true"
     agents:
       provider: gcp
       image: family/elasticsearch-ubuntu-2204
@@ -18,4 +19,5 @@ steps:
       branch: "${BUILDKITE_BRANCH}"
       env:
         DRA_WORKFLOW: staging
+        USE_PROD_DOCKER_CREDENTIALS: "true"
     if: build.env('DRA_WORKFLOW') == 'staging'

.buildkite/pipelines/periodic-packaging.template.yml

@@ -27,7 +27,8 @@ steps:
           image: family/elasticsearch-{{matrix.image}}
           diskSizeGb: 350
           machineType: n1-standard-8
-        env: {}
+        env:
+          USE_PROD_DOCKER_CREDENTIALS: "true"
   - group: packaging-tests-upgrade
     steps: $BWC_STEPS
   - group: packaging-tests-windows

.buildkite/pipelines/periodic-packaging.yml

@@ -28,7 +28,8 @@ steps:
           image: family/elasticsearch-{{matrix.image}}
           diskSizeGb: 350
           machineType: n1-standard-8
-        env: {}
+        env:
+          USE_PROD_DOCKER_CREDENTIALS: "true"
   - group: packaging-tests-upgrade
     steps:
       - label: "{{matrix.image}} / 8.0.1 / packaging-tests-upgrade"

.buildkite/pipelines/pull-request/packaging-tests-unix-sample.yml

@@ -24,4 +24,5 @@ steps:
           diskSizeGb: 350
           machineType: custom-16-32768
         env:
+          USE_PROD_DOCKER_CREDENTIALS: "true"
           PACKAGING_TASK: "{{matrix.PACKAGING_TASK}}"