[Infra] Revert previous change

The previous syntax is relied upon for automation.

Author: martincostello

Directory.Packages.props

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
-    <OTelLatestStableVer>[1.12.0,2.0)</OTelLatestStableVer>
+    <OTelLatestStableVer>1.12.0</OTelLatestStableVer>
 
     <!--
         This is typically the latest annual release of .NET. Use this wherever
@@ -38,12 +38,12 @@
     <!--
         OTel packages always point to latest stable release.
     -->
-    <PackageVersion Include="OpenTelemetry" Version="$(OTelLatestStableVer)" />
-    <PackageVersion Include="OpenTelemetry.Api" Version="$(OTelLatestStableVer)" />
-    <PackageVersion Include="OpenTelemetry.Api.ProviderBuilderExtensions" Version="$(OTelLatestStableVer)" />
-    <PackageVersion Include="OpenTelemetry.Exporter.InMemory" Version="$(OTelLatestStableVer)" />
-    <PackageVersion Include="OpenTelemetry.Extensions.Hosting" Version="$(OTelLatestStableVer)" />
-    <PackageVersion Include="OpenTelemetry.Extensions.Propagators" Version="$(OTelLatestStableVer)" />
+    <PackageVersion Include="OpenTelemetry" Version="[$(OTelLatestStableVer),2.0)" />
+    <PackageVersion Include="OpenTelemetry.Api" Version="[$(OTelLatestStableVer),2.0)" />
+    <PackageVersion Include="OpenTelemetry.Api.ProviderBuilderExtensions" Version="[$(OTelLatestStableVer),2.0)" />
+    <PackageVersion Include="OpenTelemetry.Exporter.InMemory" Version="[$(OTelLatestStableVer),2.0)" />
+    <PackageVersion Include="OpenTelemetry.Extensions.Hosting" Version="[$(OTelLatestStableVer),2.0)" />
+    <PackageVersion Include="OpenTelemetry.Extensions.Propagators" Version="[$(OTelLatestStableVer),2.0)" />
     <PackageVersion Include="OpenTracing" Version="[0.12.1,0.13)" />
 
     <!--