Bump Azure.Storage.Blobs from 12.11.0 to 12.12.0 (#2587)

Bumps [Azure.Storage.Blobs](https://github.com/Azure/azure-sdk-for-net) from 12.11.0 to 12.12.0.
- [Release notes](https://github.com/Azure/azure-sdk-for-net/releases)
- [Commits](https://github.com/Azure/azure-sdk-for-net/compare/Azure.Storage.Blobs_12.11.0...Azure.Storage.Blobs_12.12.0)

---
updated-dependencies:
- dependency-name: Azure.Storage.Blobs
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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tools/Importer/Importer.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Azure.Storage.Blobs" Version="12.11.0" />
+    <PackageReference Include="Azure.Storage.Blobs" Version="12.12.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="System.Configuration.ConfigurationManager" Version="6.0.0" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />