Update RedHat 7 -> 8 -- release/6.0-staging (#105063)

* Update RedHat version

* Replace RHEL7 with CentOS Stream 9

* Update runtime queues

Author: richlander

eng/pipelines/coreclr/templates/helix-queues-setup.yml

@@ -49,7 +49,7 @@ jobs:
       - ${{ if eq(variables['System.TeamProject'], 'internal') }}:
         - (Debian.12.Arm32)[email protected]/dotnet-buildtools/prereqs:debian-12-helix-arm32v7
         - (Debian.11.Arm32)[email protected]/dotnet-buildtools/prereqs:debian-11-helix-arm32v7
-        - (Ubuntu.2004.Arm32)[email protected]/dotnet-buildtools/prereqs:ubuntu-18.04-helix-arm32v7
+        - (Ubuntu.1804.Arm32)[email protected]/dotnet-buildtools/prereqs:ubuntu-18.04-helix-arm32v7
 
     # Linux arm64
     - ${{ if eq(parameters.platform, 'Linux_arm64') }}:
@@ -92,13 +92,13 @@ jobs:
         - (Debian.12.Amd64.Open)[email protected]/dotnet-buildtools/prereqs:debian-12-helix-amd64
         - (Debian.11.Amd64.Open)[email protected]/dotnet-buildtools/prereqs:debian-11-helix-amd64
         - Ubuntu.2004.Amd64.Open
-        - RedHat.7.Amd64.Open
+        - (Centos.7.Amd64.Open)[email protected]/dotnet-buildtools/prereqs:centos-7-mlnet-helix
       - ${{ if eq(variables['System.TeamProject'], 'internal') }}:
         - (Debian.12.Amd64)[email protected]/dotnet-buildtools/prereqs:debian-12-helix-amd64
         - (Debian.11.Amd64)[email protected]/dotnet-buildtools/prereqs:debian-11-helix-amd64
         - Ubuntu.2004.Amd64
         - (Fedora.39.Amd64)[email protected]/dotnet-buildtools/prereqs:fedora-39-helix
-        - RedHat.7.Amd64
+        - (Centos.7.Amd64.Open)[email protected]/dotnet-buildtools/prereqs:centos-7-mlnet-helix
 
     # OSX arm64
     - ${{ if eq(parameters.platform, 'OSX_arm64') }}:

eng/pipelines/libraries/helix-queues-setup.yml

@@ -54,15 +54,15 @@ jobs:
     - ${{ if eq(parameters.platform, 'Linux_x64') }}:
       - ${{ if and(eq(parameters.jobParameters.interpreter, ''), ne(parameters.jobParameters.isSingleFile, true)) }}:
         - ${{ if and(eq(parameters.jobParameters.testScope, 'outerloop'), eq(parameters.jobParameters.runtimeFlavor, 'mono')) }}:
-          - RedHat.7.Amd64.Open
+          - (Centos.7.Amd64.Open)[email protected]/dotnet-buildtools/prereqs:centos-7-mlnet-helix
           - SLES.15.Amd64.Open
           - (Fedora.39.Amd64.Open)[email protected]/dotnet-buildtools/prereqs:fedora-39-helix
           - ubuntu.2204.amd64.open.svc
           - (Debian.11.Amd64.Open)[email protected]/dotnet-buildtools/prereqs:debian-11-helix-amd64
         - ${{ if or(ne(parameters.jobParameters.testScope, 'outerloop'), ne(parameters.jobParameters.runtimeFlavor, 'mono')) }}:
           - ${{ if eq(parameters.jobParameters.isFullMatrix, true) }}:
             - (Centos.7.Amd64.Open)[email protected]/dotnet-buildtools/prereqs:centos-7-mlnet-helix
-            - RedHat.7.Amd64.Open
+            - (Centos.9.Amd64.Open)[email protected]/dotnet-buildtools/prereqs:centos-stream9-helix
             - Ubuntu.2004.Amd64.Open
             - SLES.12.Amd64.Open
             - SLES.15.Amd64.Open
@@ -71,8 +71,7 @@ jobs:
             - (Debian.11.Amd64.Open)[email protected]/dotnet-buildtools/prereqs:debian-11-helix-amd64
             - (Mariner.2.0.Amd64.Open)[email protected]/dotnet-buildtools/prereqs:cbl-mariner-2.0-helix
           - ${{ if eq(parameters.jobParameters.isFullMatrix, false) }}:
-            - (Centos.7.Amd64.Open)[email protected]/dotnet-buildtools/prereqs:centos-stream9-helix
-            - RedHat.7.Amd64.Open
+            - (Centos.7.Amd64.Open)[email protected]/dotnet-buildtools/prereqs:centos-7-mlnet-helix
             - (Debian.11.Amd64.Open)[email protected]/dotnet-buildtools/prereqs:debian-11-helix-amd64
             - Ubuntu.2004.Amd64.Open
       - ${{ if or(eq(parameters.jobParameters.interpreter, 'true'), eq(parameters.jobParameters.isSingleFile, true)) }}: