Update source-build team references (#58324)

Author: MichaelSimons

.github/CODEOWNERS

@@ -16,7 +16,7 @@
 /eng/common/                                                                      @dotnet-maestro-bot
 /eng/Versions.props                                                               @dotnet-maestro-bot @dotnet/aspnet-build @wtgodbe
 /eng/Version.Details.xml                                                          @dotnet-maestro-bot @dotnet/aspnet-build @wtgodbe
-/eng/SourceBuild*                                                                 @dotnet/source-build-internal
+/eng/SourceBuild*                                                                 @dotnet/source-build
 /src/Caching/                                                                     @captainsafia @halter73 @mgravell
 /src/Caching/**/PublicAPI.*Shipped.txt                                            @dotnet/aspnet-api-review @captainsafia @halter73 @mgravell
 /src/Components/                                                                  @dotnet/aspnet-blazor-eng

eng/DotNetBuild.props

@@ -1,4 +1,4 @@
-<!-- Whenever altering this or other Source Build files, please include @dotnet/source-build-internal as a reviewer. -->
+<!-- When altering this file, please include @dotnet/product-construction as a reviewer. -->
 
 <Project>
 

eng/SourceBuildPrebuiltBaseline.xml

@@ -1,4 +1,4 @@
-<!-- Whenever altering this or other Source Build files, please include @dotnet/source-build-internal as a reviewer. -->
+<!-- When altering this file or making other Source Build related changes, include @dotnet/source-build as a reviewer. -->
 <!-- See aka.ms/dotnet/prebuilts for guidance on what pre-builts are and how to eliminate them. -->
 
 <UsageData>