Bump Microsoft.Azure.Functions.Worker from 1.20.0 to 2.51.0

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

sample/SampleFunctionApp/SampleFunctionApp.csproj

@@ -8,7 +8,7 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.Azure.Functions.Worker" Version="1.24.0" />
+    <PackageReference Include="Microsoft.Azure.Functions.Worker" Version="2.51.0" />
     <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http" Version="3.3.0" />
     <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.OpenApi" Version="1.6.0" />
     <PackageReference Include="Microsoft.Azure.Functions.Worker.Sdk" Version="1.18.1" />