Convert the update-readmes pipeline to use 1ES templates (#5277)

eng/pipelines/update-readmes.yml

@@ -1,17 +1,38 @@
 trigger: none
 pr: none
 variables:
-- template: variables/core.yml
-jobs:
-- job: UpdateReadmes
-  pool:
-    vmImage: $(defaultLinuxAmd64PoolImage)
-  steps:
-  - template: ../common/templates/steps/init-docker-linux.yml
-  - template: steps/set-public-source-branch-var.yml
-  - template: ../common/templates/steps/set-image-info-path-var.yml
-    parameters:
-      publicSourceBranch: $(publicSourceBranch)
-  - template: steps/set-publish-mcrdocs-args-var.yml
-  - template: ../common/templates/steps/publish-readmes.yml
-  - template: ../common/templates/steps/cleanup-docker-linux.yml
+- template: /eng/pipelines/variables/core.yml@self
+resources:
+  repositories:
+  - repository: 1ESPipelineTemplates
+    type: git
+    name: 1ESPipelineTemplates/1ESPipelineTemplates
+    ref: refs/tags/release
+extends:
+  template: v1/1ES.Official.PipelineTemplate.yml@1ESPipelineTemplates
+  parameters:
+    pool:
+      name: NetCore1ESPool-Internal
+      image: 1es-windows-2022
+      os: windows
+    customBuildTags:
+    - ES365AIMigrationTooling
+    stages:
+    - stage: UpdateReadmes
+      displayName: Update Readmes
+      jobs:
+      - job: UpdateReadmes
+        displayName: Update Readmes
+        pool:
+          name: NetCore1ESPool-Internal
+          image: 1es-ubuntu-2204
+          os: linux
+        steps:
+        - template: /eng/common/templates/steps/init-docker-linux.yml@self
+        - template: /eng/pipelines/steps/set-public-source-branch-var.yml@self
+        - template: /eng/common/templates/steps/set-image-info-path-var.yml@self
+          parameters:
+            publicSourceBranch: $(publicSourceBranch)
+        - template: /eng/pipelines/steps/set-publish-mcrdocs-args-var.yml@self
+        - template: /eng/common/templates/steps/publish-readmes.yml@self
+        - template: /eng/common/templates/steps/cleanup-docker-linux.yml@self

eng/pipelines/variables/core.yml

@@ -1,5 +1,5 @@
 variables:
-- template: ../../common/templates/variables/dotnet/build-test-publish.yml
+- template: /eng/common/templates/variables/dotnet/build-test-publish.yml@self
 
 - ${{ if eq(variables['System.TeamProject'], 'internal') }}:
   - group: AzureDevOps-Artifact-Feeds-Pats