Bump Microsoft.Extensions.Configuration.EnvironmentVariables in /src

Bumps [Microsoft.Extensions.Configuration.EnvironmentVariables](https://github.com/dotnet/runtime) from 3.1.8 to 5.0.0.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](https://github.com/dotnet/runtime/commits)

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

src/aggregator-function/aggregator-function.csproj

@@ -35,7 +35,7 @@
     <PackageReference Include="System.Text.Json" Version="4.7.2" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.WebApiCompatShim" Version="2.2.0" />
     <PackageReference Include="Microsoft.Azure.WebJobs" Version="3.0.18" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="3.1.8" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="5.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="3.1.8" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="3.1.8" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="3.1.6" />

src/aggregator-webshared/aggregator-webshared.csproj

@@ -19,7 +19,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.Http" Version="2.2.2" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="3.1.8" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="5.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="3.1.8" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="3.1.8" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="3.1.6" />