Update tarball urls (#1474)

Author: dseefeld

dir.props

@@ -139,9 +139,9 @@
     <ReferencePackagesDir>$(ReferencePackagesBaseDir)packages/</ReferencePackagesDir>
     <ReferencePackagesDir Condition="'$(CustomReferencePackagesPath)' != ''">$(CustomReferencePackagesPath)/</ReferencePackagesDir>
     <SourceBuiltArtifactsTarballName>Private.SourceBuilt.Artifacts</SourceBuiltArtifactsTarballName>
-    <SourceBuiltArtifactsTarballUrl>https://dotnetcli.blob.core.windows.net/source-built-artifacts/assets/</SourceBuiltArtifactsTarballUrl>
+    <SourceBuiltArtifactsTarballUrl>https://dotnetcli.azureedge.net/source-built-artifacts/assets/</SourceBuiltArtifactsTarballUrl>
     <ReferencePackagesTarballName>Private.SourceBuild.ReferencePackages</ReferencePackagesTarballName>
-    <ReferencePackagesTarballUrl>https://dotnetcli.blob.core.windows.net/source-build-reference-packages/assets/</ReferencePackagesTarballUrl>
+    <ReferencePackagesTarballUrl>https://dotnetcli.azureedge.net/source-build-reference-packages/assets/</ReferencePackagesTarballUrl>
     <ReferencePackagesToDeleteDir>$(ReferencePackagesBaseDir)packages-to-delete/</ReferencePackagesToDeleteDir>
     <BaselineDataFile>$(ToolsLocalDir)prebuilt-baseline-</BaselineDataFile>
     <OfflineBaselineDataFile>$(BaselineDataFile)offline.xml</OfflineBaselineDataFile>