Bump Microsoft.AspNetCore.OpenApi from 8.0.0 to 8.0.22

---
updated-dependencies:
- dependency-name: Microsoft.AspNetCore.OpenApi
  dependency-version: 8.0.22
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

backend/backend.csproj

@@ -11,7 +11,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.0" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.22" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.8.1" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="DotNetEnv" Version="3.1.1" />