Bump Swashbuckle.AspNetCore from 6.7.1 to 6.7.3

Bumps [Swashbuckle.AspNetCore](https://github.com/domaindrivendev/Swashbuckle.AspNetCore) from 6.7.1 to 6.7.3.
- [Release notes](https://github.com/domaindrivendev/Swashbuckle.AspNetCore/releases)
- [Commits](domaindrivendev/Swashbuckle.AspNetCore@v6.7.1...v6.7.3)

---
updated-dependencies:
- dependency-name: Swashbuckle.AspNetCore
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

src/TestApi/TestApi.csproj

@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="7.0.20" />
-    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.7.1" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.7.3" />
   </ItemGroup>
 
   <ItemGroup>