Bump Microsoft.Azure.Functions.Worker from 2.1.0 to 2.51.0 (#46)

---
updated-dependencies:
- dependency-name: Microsoft.Azure.Functions.Worker
  dependency-version: 2.51.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: Microsoft.Azure.Functions.Worker
  dependency-version: 2.51.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

src/Signal9.Agent.Functions/Signal9.Agent.Functions.csproj

@@ -12,7 +12,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Azure.Functions.Worker" Version="2.1.0" />
+    <PackageReference Include="Microsoft.Azure.Functions.Worker" Version="2.51.0" />
     <PackageReference Include="Microsoft.Azure.Functions.Worker.Sdk" Version="2.0.5" />
     <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http" Version="3.3.0" />
     <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.SignalRService" Version="2.0.1" />