chore(deps): Bump Microsoft.AspNetCore.OpenApi from 8.0.17 to 8.0.21

---
updated-dependencies:
- dependency-name: Microsoft.AspNetCore.OpenApi
  dependency-version: 8.0.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/Dotnet.Samples.AspNetCore.WebApi/Dotnet.Samples.AspNetCore.WebApi.csproj

@@ -13,7 +13,7 @@
   </ItemGroup>
 
   <ItemGroup Label="Runtime dependencies">
-    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.17" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.21" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.6" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="9.0.6" />
     <PackageReference Include="AutoMapper" Version="14.0.0" />

src/Dotnet.Samples.AspNetCore.WebApi/packages.lock.json

@@ -29,9 +29,9 @@
       },
       "Microsoft.AspNetCore.OpenApi": {
         "type": "Direct",
-        "requested": "[8.0.17, )",
-        "resolved": "8.0.17",
-        "contentHash": "sGed2RDkJYAoi7N4gUTota56Mix/Vu6UrzCWdwqH1jZwnLnZb+eP2zdABYCaVlBEHBwzuL1zchUFtJXW4lO5LA==",
+        "requested": "[8.0.21, )",
+        "resolved": "8.0.21",
+        "contentHash": "nSr56STDye1O3zp3MaFpJCjtHkNzcZ39QxevWmevEraoglplXP7G4MS4OgE3J1TxfXg+7x3Ii/tRiQv1MpNc6Q==",
         "dependencies": {
           "Microsoft.OpenApi": "1.4.3"
         }