Bump Azure.Storage.Blobs in /src/dotnetcore31/AzureFunctions.Blob (#416)

Bumps [Azure.Storage.Blobs](https://github.com/Azure/azure-sdk-for-net) from 12.13.1 to 12.16.0.
- [Release notes](https://github.com/Azure/azure-sdk-for-net/releases)
- [Commits](Azure/azure-sdk-for-net@Azure.Storage.Blobs_12.13.1...Azure.Storage.Blobs_12.16.0)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Marc Duiker <marcduiker@users.noreply.github.com>

src/dotnetcore31/AzureFunctions.Blob/AzureFunctions.Blob.csproj

@@ -7,7 +7,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Sdk.Functions" Version="3.1.2"/>
     <PackageReference Include="Microsoft.Azure.WebJobs.Extensions.Storage" Version="4.0.5"/>
-    <PackageReference Include="Azure.Storage.Blobs" Version="12.13.1"/>
+    <PackageReference Include="Azure.Storage.Blobs" Version="12.16.0"/>
   </ItemGroup>
   <ItemGroup>
     <None Update="host.json">