Bump DotNetEnv from 2.3.0 to 2.5.0 in /server/dotnet

Bumps [DotNetEnv](https://github.com/tonerdo/dotnet-env) from 2.3.0 to 2.5.0.
- [Release notes](https://github.com/tonerdo/dotnet-env/releases)
- [Commits](tonerdo/dotnet-env@v2.3.0...v2.5.0)

---
updated-dependencies:
- dependency-name: DotNetEnv
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

server/dotnet/dotnet.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="DotNetEnv" Version="2.3.0" />
+    <PackageReference Include="DotNetEnv" Version="2.5.0" />
     <PackageReference Include="stripe.net" Version="41.8.0" />
   </ItemGroup>