Update public pool names

eng/azure-pipelines.yml

@@ -33,7 +33,7 @@ jobs:
     - job: Windows_NT
       pool: 
         ${{ if or(eq(variables['System.TeamProject'], 'public'), in(variables['Build.Reason'], 'PullRequest')) }}:
-          name: NetCore1ESPool-Public
+          name: NetCore-Public
           demands: ImageOverride -equals build.windows.10.amd64.vs2019.pre.open
         ${{ if and(ne(variables['System.TeamProject'], 'public'), notin(variables['Build.Reason'], 'PullRequest')) }}:
           name: NetCore1ESPool-Internal

eng/common/templates/job/source-build.yml

@@ -46,7 +46,7 @@ jobs:
     # source-build builds run in Docker, including the default managed platform.
     pool:
       ${{ if eq(variables['System.TeamProject'], 'public') }}:
-        name: NetCore1ESPool-Public
+        name: NetCore-Public
         demands: ImageOverride -equals Build.Ubuntu.1804.Amd64.Open
       ${{ if eq(variables['System.TeamProject'], 'internal') }}:
         name: NetCore1ESPool-Internal

eng/common/templates/job/source-index-stage1.yml

@@ -24,7 +24,7 @@ jobs:
 
   pool:
     ${{ if eq(variables['System.TeamProject'], 'public') }}:
-      name: NetCore1ESPool-Public
+      name: NetCore-Public
       demands: ImageOverride -equals Build.Server.Amd64.VS2019.Open
     ${{ if eq(variables['System.TeamProject'], 'internal') }}:
       name: NetCore1ESPool-Internal