Update branding to 7.0.12 (#91405)

eng/Versions.props

 <Project>
   <PropertyGroup>
     <!-- The .NET product branding version -->
-    <ProductVersion>7.0.11</ProductVersion>
+    <ProductVersion>7.0.12</ProductVersion>
     <!-- File version numbers -->
     <MajorVersion>7</MajorVersion>
     <MinorVersion>0</MinorVersion>
-    <PatchVersion>11</PatchVersion>
+    <PatchVersion>12</PatchVersion>
     <SdkBandVersion>7.0.100</SdkBandVersion>
     <PackageVersionNet6>6.0.$([MSBuild]::Add($(PatchVersion), 11))</PackageVersionNet6>
     <PreReleaseVersionLabel>servicing</PreReleaseVersionLabel>