ci: job skip based on release train state

Author: jpayne3506

.pipelines/build/images.jobs.yaml

@@ -7,6 +7,8 @@ jobs:
 - ${{ each job_data in parameters.images }}:
   - job: pkg_${{ job_data.job }}
     displayName: "Prepare Image Package - ${{ job_data.displayName }} -"
+    # If archiveVersion is empty then the respective component does not exist in that release train
+    condition: and(succeeded(), ne(variables['archiveVersion'], ''))
     ${{ if job_data.strategy }}:
       strategy: ${{ job_data.strategy }}
     ${{ if job_data.dependsOn }}:
@@ -76,15 +78,15 @@ jobs:
     - task: ShellScript@2
       displayName: "Package with DropGZ"
       condition: and(
-        succeeded(), 
+        succeeded(),
         eq(variables.packageWithDropGZ, 'True'))
       inputs:
         scriptPath: $(REPO_ROOT)/.pipelines/build/scripts/dropgz.sh
 
     - ${{ if not(contains(job_data.job, 'linux')) }}:
       - task: onebranch.pipeline.signing@1
         condition: and(
-          succeeded(), 
+          succeeded(),
           eq(variables.packageWithDropGZ, 'True'))
         inputs:
           command: 'sign'
@@ -94,7 +96,7 @@ jobs:
 
     # OneBranch artifacts are stored on a Windows machine which obliterates
     # Linux file permissions.
-    # This task is added (along with ob_extract_root_artifact in jobs that 
+    # This task is added (along with ob_extract_root_artifact in jobs that
     # download the artifact) to protect those file permissions from changing
     # during image build time.
     #