Bump GenHTTP.Core.Kestrel and GenHTTP.Modules.IO

Bumps GenHTTP.Core.Kestrel from 10.1.0 to 10.3.0
Bumps GenHTTP.Modules.IO from 10.1.0 to 10.3.0

---
updated-dependencies:
- dependency-name: GenHTTP.Core.Kestrel
  dependency-version: 10.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: GenHTTP.Modules.IO
  dependency-version: 10.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

GenHTTP.Gateway/GenHTTP.Gateway.csproj

@@ -26,11 +26,11 @@
 
   <ItemGroup>
 
-    <PackageReference Include="GenHTTP.Core.Kestrel" Version="10.1.0" />
+    <PackageReference Include="GenHTTP.Core.Kestrel" Version="10.3.0" />
 
     <PackageReference Include="GenHTTP.Modules.DirectoryBrowsing" Version="10.1.0" />
 
-    <PackageReference Include="GenHTTP.Modules.IO" Version="10.1.0" />
+    <PackageReference Include="GenHTTP.Modules.IO" Version="10.3.0" />
 
     <PackageReference Include="GenHTTP.Modules.ReverseProxy" Version="10.1.0" />