Fix repository alias conflict - use 1ESPipelineTemplates instead of 1es

Co-authored-by: torosent <[email protected]>

Author: Copilot

eng/ci/code-mirror.yml

@@ -13,7 +13,7 @@ pr: none
 
 resources:
   repositories:
-    - repository: 1es
+    - repository: 1ESPipelineTemplates
       type: git
       name: 1ESPipelineTemplates/1ESPipelineTemplates
       ref: refs/tags/release
@@ -23,7 +23,7 @@ resources:
       ref: refs/tags/release
 
 extends:
-  template: v1/1ES.Official.PipelineTemplate.yml@1es
+  template: v1/1ES.Official.PipelineTemplate.yml@1ESPipelineTemplates
   parameters:
     pool:
       name: 1es-pool-azfunc