Add emojis to 1es pipeline

1es-azure-pipeline.yml

@@ -41,15 +41,15 @@ parameters:
   - name: NetCore1ESPool-Internal
     image: 1es-windows-2022
     os: windows
-    emoji: ⚪
+    emoji: 🪟
   - name: NetCore1ESPool-Internal
     image: 1es-ubuntu-2204
     os: linux
-    emoji: 🟣
+    emoji: 🐧
   - name: Azure Pipelines
     image: macOS-latest
     os: macOS
-    emoji: ⚫
+    emoji: 🍎
 - name: SignType
   displayName: Sign type
   type: string