[ci] Update reproducible build related pipeline. (sonic-net#11810)

Author: liushilongbuaa

.azure-pipelines/azure-pipelines-repd-build-variables.yml

@@ -1,6 +1,6 @@
 variables:
   ${{ if eq(variables['Build.Reason'],'PullRequest') }}:
-    VERSION_CONTROL_OPTIONS: 'SONIC_VERSION_CONTROL_COMPONENTS=$([ "$(System.PullRequest.TargetBranch)" != "master" ] && echo deb,py2,py3,web,git,docker)'
+    VERSION_CONTROL_OPTIONS: 'SONIC_VERSION_CONTROL_COMPONENTS=$([[ "$(System.PullRequest.TargetBranch)" =~ ^20[2-9][0-9]{3}$ ]] && echo deb,py2,py3,web,git,docker)'
   ${{ elseif ne(variables['Build.SourceBranchName'],'master') }}:
     VERSION_CONTROL_OPTIONS: 'SONIC_VERSION_CONTROL_COMPONENTS=deb,py2,py3,web,git,docker'
   ${{ else }}:

.azure-pipelines/official-build.yml

@@ -38,7 +38,7 @@ stages:
   variables:
   - name: CACHE_MODE
     value: wcache
-  - template: azure-pipelines-repd-build-variables.yml
+  - template: azure-pipelines-repd-build-variables.yml@buildimage
   jobs:
   - template: azure-pipelines-build.yml
     parameters:

azure-pipelines.yml

@@ -38,10 +38,7 @@ resources:
 
 variables:
 - template: .azure-pipelines/azure-pipelines-repd-build-variables.yml@buildimage
-- ${{ if eq(variables['Build.Reason'], 'PullRequest') }}:
-  - template: .azure-pipelines/template-variables.yml
-- ${{ else }}:
-  - template: .azure-pipelines/template-variables.yml@buildimage
+- template: .azure-pipelines/template-variables.yml@buildimage
 - name: CACHE_MODE
   value: rcache
 - name: ENABLE_FIPS