[maestro] setup direct subscription for dotnet/runtime (#9239)

Changes: dotnet/runtime@fe0cfd5...c4a7987

.NET 9 RC 1 will include security fixes, so the very latest builds
will be internal. As a way for us to test the newest possible *public*
builds, we can update dotnet/runtime *ahead* of dotnet/sdk.

To do this:

* Remove `CoherentParentDependency="Microsoft.NET.Sdk"` from
  `eng/Version.Details.xml`.

* Find a commit at: https://github.com/dotnet/runtime/commits/release/9.0-rc1

* Get the BAR build id for the commit:

    > darc get-build --repo dotnet/runtime --commit c4a79875fcb2c76b2e92ff50940d4ea9264e2eeb
    Repository:    https://github.com/dotnet/runtime
    Branch:        release/9.0-rc1
    Commit:        c4a79875fcb2c76b2e92ff50940d4ea9264e2eeb
    Build Number:  20240821.1
    Date Produced: 8/21/2024 7:33 AM
    AzDO Build Id: 2520584
    BAR Build Id:  235694
    Released:      False
    Channels:
    - .NET 9 RC 1

* Get the latest update:

    > darc update-dependencies --id 235694
    Looking up build with BAR id 235694
    Updating 'Microsoft.NETCore.App.Ref': '9.0.0-rc.1.24420.11' => '9.0.0-rc.1.24421.1' (from build '20240821.1' of 'https://github.com/dotnet/runtime')
    Checking for coherency updates...
    Using 'Strict' coherency mode. If this fails, a second attempt utilizing 'Legacy' Coherency mode will be made.
    Updating 'Microsoft.NET.Workload.Emscripten.Current.Manifest-9.0.100.Transport': '9.0.0-rc.1.24416.2' => '9.0.0-rc.1.24420.5' to ensure coherency with Microsoft.NETCore.App.Ref@9.0.0-rc.1.24421.1
    Local dependencies updated based on build with BAR id 235694 (20240821.1 from https://github.com/dotnet/runtime@release/9.0-rc1)

After this is merged, we can add a new daily subscription, such as:

    > darc add-subscription --channel ".NET 9 RC 1" --target-branch "release/9.0.1xx-rc1" --source-repo https://github.com/dotnet/runtime --target-repo https://github.com/dotnet/android

eng/Version.Details.xml

@@ -8,11 +8,11 @@
       <Uri>https://github.com/dotnet/runtime</Uri>
       <Sha>fe0cfd55339cc2a0d745f742a48d5e880c112ec2</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NETCore.App.Ref" Version="9.0.0-rc.1.24420.11" CoherentParentDependency="Microsoft.NET.Sdk">
+    <Dependency Name="Microsoft.NETCore.App.Ref" Version="9.0.0-rc.1.24421.1">
       <Uri>https://github.com/dotnet/runtime</Uri>
-      <Sha>fe0cfd55339cc2a0d745f742a48d5e880c112ec2</Sha>
+      <Sha>c4a79875fcb2c76b2e92ff50940d4ea9264e2eeb</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NET.Workload.Emscripten.Current.Manifest-9.0.100.Transport" Version="9.0.0-rc.1.24416.2" CoherentParentDependency="Microsoft.NETCore.App.Ref">
+    <Dependency Name="Microsoft.NET.Workload.Emscripten.Current.Manifest-9.0.100.Transport" Version="9.0.0-rc.1.24420.5" CoherentParentDependency="Microsoft.NETCore.App.Ref">
       <Uri>https://github.com/dotnet/emsdk</Uri>
       <Sha>459c92904b224d125a350a3f3e431fe90152a95e</Sha>
     </Dependency>

eng/Versions.props

@@ -4,10 +4,10 @@
     <MicrosoftNETSdkPackageVersion>9.0.100-rc.1.24421.9</MicrosoftNETSdkPackageVersion>
     <MicrosoftDotnetSdkInternalPackageVersion>$(MicrosoftNETSdkPackageVersion)</MicrosoftDotnetSdkInternalPackageVersion>
     <MicrosoftNETILLinkTasksPackageVersion>9.0.0-rc.1.24420.11</MicrosoftNETILLinkTasksPackageVersion>
-    <MicrosoftNETCoreAppRefPackageVersion>9.0.0-rc.1.24420.11</MicrosoftNETCoreAppRefPackageVersion>
+    <MicrosoftNETCoreAppRefPackageVersion>9.0.0-rc.1.24421.1</MicrosoftNETCoreAppRefPackageVersion>
     <MicrosoftDotNetApiCompatPackageVersion>7.0.0-beta.22103.1</MicrosoftDotNetApiCompatPackageVersion>
     <MicrosoftDotNetBuildTasksFeedPackageVersion>9.0.0-beta.24408.2</MicrosoftDotNetBuildTasksFeedPackageVersion>
-    <MicrosoftNETWorkloadEmscriptenCurrentManifest90100TransportVersion>9.0.0-rc.1.24416.2</MicrosoftNETWorkloadEmscriptenCurrentManifest90100TransportVersion>
+    <MicrosoftNETWorkloadEmscriptenCurrentManifest90100TransportVersion>9.0.0-rc.1.24420.5</MicrosoftNETWorkloadEmscriptenCurrentManifest90100TransportVersion>
     <MicrosoftNETWorkloadEmscriptenPackageVersion>$(MicrosoftNETWorkloadEmscriptenCurrentManifest90100TransportVersion)</MicrosoftNETWorkloadEmscriptenPackageVersion>
     <MicrosoftTemplateEngineTasksPackageVersion>7.0.100-rc.1.22410.7</MicrosoftTemplateEngineTasksPackageVersion>
     <MicrosoftDotNetCecilPackageVersion>0.11.5-alpha.24413.1</MicrosoftDotNetCecilPackageVersion>